PER CURIAM.

Anita Christensen and Robert Alty, an unmarried couple and plaintiffs in this civil rights action, allege that they have been stalked and harassed unjustifiably by Edward Krieger, a Deputy Sheriff of Boone County, Illinois. Specifically, they allege that Deputy Krieger interfered with the couple's constitutional right to be free from unreasonable searches and seizures and their right to intimate association. They further allege that the Deputy's employer, Boone County, was responsible for the Deputy's actions. The complaint also contains a pendent state law claim asserted solely against Deputy Krieger for intentional infliction of emotional distress.

Deputy Krieger and Boone County filed a motion to dismiss for failure to state a claim upon which relief can be granted. See Fed.R.Civ.P. 12(b)(6). The district court granted the defendants' motion; it held that the plaintiffs had failed to plead either a cognizable constitutional violation or, with respect to the state law count, the elements of a common law tort. The plaintiffs now appeal this ruling. We agree with the district court that the Fourth Amendment claim is meritless and hold that it was properly dismissed. With respect to the claim based on the right to intimate association and the claim alleging intentional infliction of emotional distress, we believe that the pleading requirements of Rule 8 have been satisfied but that the claim fails on the merits. We reinstate the plaintiffs' claims under state law. Accordingly, we affirm in part and reverse in part the judgment of the district court.

I. BACKGROUND

A. Facts

Because this case comes to us from a dismissal under Rule 12(b)(6), we must accept all well-pleaded allegations in the complaint as true and draw all reasonable inferences in favor of the plaintiffs. See Marshall-Mosby v. Corporate Receivables, Inc., 205 F.3d 323, 326 (7th Cir.2000).

Robert Alty is a police officer for the City of Belvidere, Illinois. In 1998 he arrested a driver for operating a vehicle while under the influence of alcohol. That driver turned out to be a friend or relative of Edward Krieger, a Deputy Sheriff of Boone County, Illinois. This incident resulted in animosity between the two officers that culminated in a face-to-face altercation at some point in 2001. According to the allegations of the complaint, after that incident, Deputy Krieger engaged in "a pattern of on-duty conduct designed to harass, annoy, and intimidate" Officer Alty and his girlfriend, Anita Christensen. Specifically, the couple alleges that Deputy Krieger repeatedly followed them, both individually and with each other, while they drove on Boone County streets; parked his squad car in front of Ms. Christensen's place of employment in order to watch her; and sat in his police car outside of businesses that the plaintiffs were visiting in an effort to cause the couple "difficulties with the proprietors of such establishments."

Ms. Christensen and Officer Alty claimed that Deputy Krieger's actions were performed under color of state law and deprived them of their rights to privacy, freedom of association, freedom from unreasonable searches and seizures and "substantive due process rights under the First, Fourth, Fifth, and Fourteenth Amendments." The complaint further alleges that Officer Alty and Ms. Christensen had filed numerous complaints with Deputy Krieger's supervisors at the Boone County Sheriff's Department, but that the Department had not taken any action to correct the situation. Finally, the complaint alleges that Deputy Krieger's conduct constituted the intentional infliction of emotional distress under Illinois law.

B. District Court Proceedings

The district court dismissed the plaintiffs' action for failure to state a claim upon which relief could be granted. See Fed.R.Civ.P. 12(b)(6). First, with respect to the plaintiffs' Fourth Amendment claim, the court concluded that the complaint failed to identify any legitimate expectation of privacy that had been invaded by Deputy Krieger. Second, the court held that the plaintiffs' "intimate association" claim failed because they had not alleged any actual interference with their relationship. In the court's view, the plaintiffs' assertions of feeling annoyed and harassed did not allege an impact on the relationship itself. Finally, the court dismissed the plaintiffs' intentional infliction of emotional harm claim because they had not pleaded a severe emotional injury and because Deputy Krieger's behavior, as described in the complaint, was "nowhere near to being extreme or outrageous as that element of the tort is defined by Illinois courts."

II. DISCUSSION

We must decide de novo whether the plaintiffs' complaint states a claim upon which relief could be granted. See Williams v. Seniff, 342 F.3d 774, 792 (7th Cir.2003). A motion under Rule 12(b)(6) challenges the sufficiency of the complaint, and dismissal of an action under this rule is warranted only if "no relief could be granted under any set of facts that could be proved consistent with the allegations." DeWalt v. Carter, 224 F.3d 607, 612 (7th Cir.2000) (internal quotation marks omitted). Under the notice pleading regime of the Federal Rules of Civil Procedure, the plaintiffs' complaint must contain only "a short and plain statement of the claim showing that the pleader is entitled to relief." Fed.R.Civ.P. 8(a)(2). Apart from several limited exceptions, a "short and plain statement" exists when the complaint pleads a "bare minimum [of] facts necessary to put the defendant on notice of the claim so that he can file an answer." Higgs v. Carver, 286 F.3d 437, 439 (7th Cir.2002); see also Kolupa v. Roselle Park Dist., 438 F.3d 713, 714 (7th Cir.2006) ("It is enough to name the plaintiff and the defendant, state the nature of the grievance, and give a few tidbits (such as the date) that will let the defendant investigate. A full narrative is unnecessary."). The Supreme Court also has instructed that, in civil rights cases alleging municipal liability, a federal court may not apply a heightened pleading standard more stringent than the usual pleading requirements of Rule 8(a). See Leatherman v. Tarrant County, 507 U.S. 163, 165, 113 S.Ct. 1160, 122 L.Ed.2d 517 (1993).

Together, these rules ensure that claims are determined on their merits rather than on pleading technicalities. See Swierkiewicz v. Sorema N.A., 534 U.S. 506, 514, 122 S.Ct. 992, 152 L.Ed.2d 1 (2002) ("The liberal notice pleading of Rule 8(a) is the starting point of a simplified pleading system, which was adopted to focus litigation on the merits of a claim."). For this reason, we do not require "an exhaustive recitation of the facts or elements" of a plaintiffs claim. Lekas v. Briley, 405 F.3d 602, 606 (7th Cir.2005). Indeed, "[a]ll the complaint need do to withstand a motion to dismiss for failure to state a claim is out-line or adumbrate a violation of the statute or constitutional provision upon which the plaintiff relies and connect the violation to the named defendants." Brownlee v. Co-nine, 957 F.2d 353, 354 (7th Cir.1992) (internal citations and quotation marks omitted). Rule 8(a)'s notice pleading standard applies to pendant state law claims that are pleaded in federal court. See, e.g., McDonald v. Household International, Inc., 425 F.3d 424, 427 (7th Cir.2005).

A. Constitutional Violations

Within this liberal framework of notice pleading, the plaintiffs seek to state a claim against Deputy Krieger and Boone County under 42 U.S.C. § 1983. In order to state a claim under § 1983, the plaintiffs must allege that a government official, acting under color of state law, deprived them of a right secured by the Constitution or laws of the United States. Brokaw v. Mercer County, 235 F.3d 1000, 1009 (7th Cir.2000); see also Gomez v. Toledo, 446 U.S. 635, 640, 100 S.Ct. 1920, 64 L.Ed.2d 572 (1980). Here, the plaintiffs allege that Deputy Krieger and Boone County violated the couple's Fourth Amendment right to be free from unreasonable searches and seizures. The complaint also alleges that the defendants deprived them of their right to associate intimately without interference from the state, a right they describe as a liberty interest protected by the Fourteenth Amendment's Due Process Clause. Deputy Krieger and Boone County do not dispute that their alleged actions were taken "under color of state law," Brokaw, 235 F.3d at 1009. Instead, the parties' disagreement surrounds whether the plaintiffs have alleged the violation of a federal right. We shall address each constitutional claim in turn.

1. Fourth Amendment

The plaintiffs' first constitutional claim is covered by a specific constitutional provision, the Fourth Amendment. When the violation of a specific right is alleged, such a claim "must be analyzed under the standard appropriate to that specific [constitutional] provision." County of Sacramento v. Lewis, 523 U.S. 833, 843, 118 S.Ct. 1708, 140 L.Ed.2d 1043 (1998). The Fourth Amendment protects "[t]he right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures." Only government activity that constitutes either a "search" or a "seizure" is regulated by the Fourth Amendment.

A search takes place when the state intrudes upon an individual's legitimate interest in privacy. See Katz v. United States, 389 U.S. 347, 88 S.Ct. 507, 19 L.Ed.2d 576 (1967); see also California v. Greenwood, 486 U.S. 35, 39, 108 S.Ct. 1625, 100 L.Ed.2d 30 (1988). This expectation must be one that society is willing to accept. See Katz, 389 U.S. at 353, 88 S.Ct. 507. Furthermore, a plaintiff invoking the Fourth Amendment must show that he has attempted to keep the object of the search private. Id. at 351, 88 S.Ct. 507 ("[T]he Fourth Amendment protects people, not places. What a person knowingly exposes to the public, even in his own home or office, is not a subject of Fourth Amendment protection."); United States v. Dunkel, 900 F.2d 105, 107 (7th Cir.1990).

In the present case, the plaintiffs allege that Deputy Krieger followed them in his squad car as they drove on Boone County roads and sat outside businesses that the couple patronized. This alleged behavior did not constitute a Fourth Amendment search. Driving on public streets is one of the activities during which a person does not enjoy a legitimate interest in privacy. United States v. Knotts, 460 U.S. 276, 281, 103 S.Ct. 1081, 75 L.Ed.2d 55 (1983) ("A person traveling in an automobile on public thoroughfares has no reasonable expectation of privacy in his movements from one place to another."). Nor can individuals reasonably expect privacy in the parking lot of a business. See Dunkel, 900 F.2d at 107. In observing the couple's public movements, Deputy Krieger did not conduct a search in violation of the Fourth Amendment.

Nor were the plaintiffs ever "seized" within the meaning of the Fourth Amendment. We recognize that, in certain circumstances, a Fourth Amendment "seizure" may occur when police intentionally restrict the freedom of a person to move about in public. See Brower v. County of Inyo, 489 U.S. 593, 596, 109 S.Ct. 1378, 103 L.Ed.2d 628 (1989). For example, if law enforcement officers attempt to stop a fleeing suspect by forcing his automobile off the road, they have conducted a seizure for purposes of the Fourth Amendment. Id. at 597, 109 S.Ct. 1378. This type of seizure occurs, however, only if two conditions are met. First, the officer must, through physical force or a show of authority, "communicate to a reasonable person that he [is] not at liberty to ignore the police presence and go about his business." Florida v. Bostick, 501 U.S. 429, 437, 111 S.Ct. 2382, 115 L.Ed.2d 389 (1991) (internal quotation marks omitted); see also United, States v. Packer, 15 F.3d 654, 657 (7th Cir.1994). Second, when the officer's encounter with the plaintiff is nonphysical, the plaintiff must have submitted to the show of authority to establish that a seizure has taken place. See California v. Hodari D., 499 U.S. 621, 626, 111 S.Ct. 1547, 113 L.Ed.2d 690 (1991) ("An arrest requires either physical force (as described above) or, where that is absent, submission to the assertion of authority." (emphasis omitted)).

In light of these requirements, the theory that the plaintiffs were "seized" when Deputy Krieger followed them in his squad car is inconsistent with the allegations of the complaint. The alleged actions by Deputy Krieger were nonphysical. Therefore, to be a seizure, the Deputy must have communicated reasonably to the plaintiffs that they were not free to move. We cannot hypothesize from the allegations contained in the complaint a scenario in which Deputy Krieger's actions — the following, the stalking in the parking lot — would lead reasonable persons to feel that they had to stay where they were for fear of force or arrest. See Driebel v. Milwaukee, 298 F.3d 622, 642 (7th Cir.2002) (determining that a police station employee was not seized when he was ordered to work overtime and "stand by" for three and one-half hours in the police garage, because there was "no evidence suggesting that he would have been prevented from leaving the garage had he refused to obey"). Indeed, the complaint asserts that Deputy Krieger followed the plaintiffs repeatedly, meaning that they continued to go about their daily business in spite of being followed and watched. These allegations cannot describe a Fourth Amendment "seizure" because they tell us that the plaintiffs, in fact, did not submit to whatever restriction on their freedom Deputy Krieger attempted to impose. Id. ("A seizure occurs only when a person submits to the show of lawful authority. . . .").

Nor do the plaintiffs' other allegations state a claim under the Fourth Amendment. Ms. Christensen complained of being watched by Deputy Krieger as she went about her duties as an employee of a local gas station. At these moments, however, she did not enjoy a legitimate expectation of privacy. In her job at the gas station, she appeared in plain view of the public, and Deputy Krieger had no particular vantage point unavailable to the public generally. See United States v. Gonzalez, 328 F.3d 543, 547 (9th Cir.2003) (holding that a hospital employee caught on video in the mailroom of the hospital enjoyed no legitimate expectation of privacy). Thus, where Ms. Christensen's job exposed her movements to the public generally, the Fourth Amendment is no bar to her being watched by police officers. See United States v. Sandoval-Vasquez, 435 F.3d 739, 743 (7th Cir.2006) (holding that no search occurred when police officers entered an open business); United States v. Tolar, 268 F.3d 530, 532 (7th Cir.2001) (noting that a chain link fence surrounding a business did not engender a reasonable expectation of privacy in items visible through the fence).

Finally, the complaint describes an incident in which Deputy Krieger searched a cell phone belonging to a friend of Officer Alty to find out if the two recently had communicated. Like the others, this incident cannot supply the basis for a Fourth Amendment claim because Officer Alty had no legitimate expectation of privacy in a cell phone belonging to someone else. Rakas v. Illinois, 439 U.S. 128, 134, 99 S.Ct. 421, 58 L.Ed.2d 387 (1978) ("A person who is aggrieved by an illegal search and seizure only through the introduction of damaging evidence secured by a search of a third person's premises or property has not had any of his Fourth Amendment rights infringed."); Young v. Murphy, 90 F.3d 1225, 1236 (7th Cir.1996) ("The right against unreasonable searches and seizures is a personal right and generally may not be submitted on behalf of others."). The plaintiffs' Fourth Amendment claims properly were dismissed.

2. Intimate Association

The plaintiffs' other constitutional claim asserts the deprivation of a liberty interest in violation of the Fourteenth Amendment's Due Process Clause. More specifically, the couple asserts that Deputy Krieger's conduct, and the County's tacit approval of that conduct, unjustifiably impaired the plaintiffs' fundamental right to associate intimately with one another. To assess this assertion, we employ the basic framework for claims that arise out of the substantive component of the Fourteenth Amendment's Due Process Clause. In doing so, we keep in mind the Supreme Court's admonition that the concept of substantive due process must be expanded reluctantly "'because the guideposts for responsible decision-making in this uncharted area are scarce and open-ended.'" Washington v. Glucksberg, 521 U.S. 702, 720, 117 S.Ct. 2258, 138 L.Ed.2d 772 (1997) (quoting Collins v. Harker Heights, 503 U.S. 115, 125, 112 S.Ct. 1061, 117 L.Ed.2d 261 (1992)); see also University of Michigan v. Ewing, 474 U.S. 214, 225-26, 106 S.Ct. 507, 88 L.Ed.2d 523 (1985).

Our first step is to provide a "careful description" of the interest said to have been violated. Doe v. City of Lafayette, 377 F.3d 757, 768 (7th Cir.2004) (citing Glucksberg, 521 U.S. at 721, 117 S.Ct. 2258). Then, we must determine whether that interest is "fundamental" — that is, whether it is so deeply rooted and sacrosanct that no amount of process would justify its deprivation. Glucksberg, 521 U.S. at 720-21, 117 S.Ct., 2302 ("[T]he Due Process Clause specially protects those fundamental rights and liberties which are, objectively, deeply rooted in this Nation's history and tradition. . . ." (internal quotation marks omitted)). Once we are satisfied that a fundamental right is at stake, we then determine whether the government has interfered "directly" and "substantially" with the plaintiffs' exercise of that right. Zablocki v. Redhail, 434 U.S. 374, 386-87 n. 12, 98 S.Ct. 673, 54 L.Ed.2d 618 (1978). Finally, if a fundamental right has been impaired, we ask whether the governmental action can find "reasonable justification in the service of a legitimate governmental objective," or if instead it more properly is "characterized as arbitrary, or conscience shocking, in a constitutional sense." Lewis, 523 U.S. at 846-47, 118 S.Ct. 1708.

In the present case, the plaintiffs invoke their constitutional right to engage in "intimate association." In more concrete terms, the plaintiffs claim that they should have been free from Deputy Krieger's interference with their choice to enter into a non-marital romantic relationship. The Supreme Court frequently has recognized the constitutional stature of the freedom to enter into and carry on certain intimate associations. In Roberts v. United States Jaycees, 468 U.S. 609, 104 S.Ct. 3244, 82 L.Ed.2d 462 (1984), the Court delivered a comprehensive discussion of this right. At the outset, the Court observed that, in prior cases, it had described the freedom to associate in "two distinct senses." Id. at 617, 104 S.Ct. 3244. In the first line of cases, Roberts explained, "the Court has recognized a right to associate for the purpose of engaging in those activities protected by the First Amendment — speech, assembly, petition for the redress of grievances, and the exercise of religion." Id. at 618, 104 S.Ct. 3244. In the second set of decisions, "the Court has concluded that choices to enter into and maintain certain intimate human relationships must be secured against undue intrusion by the State because of the role of such relationships in safeguarding the individual freedom that is central to our constitutional scheme." Id. at 617-18, 104 S.Ct. 3244. In this second category of decisions, "freedom of association receives protection as a fundamental element of personal liberty" under the Due Process Clause. Id. at 618, 104 S.Ct. 3244; see also Montgomery v. Stefaniak, 410 F.3d 933, 937 (7th Cir.2005).

The plaintiffs' relationship, as they assert, fits best within the second Roberts category and, therefore, must be analyzed under the Due Process Clause as a liberty interest, rather than as a relationship formed for first amendment purposes. Intimate associations protected by the Due Process Clause, Roberts said, "have played a critical role in the culture and traditions of the Nation by cultivating and transmitting shared ideals and beliefs; they thereby foster diversity and act as critical buffers between the individual and the power of the State." Roberts, 468 U.S. at 618, 104 S.Ct. 3244. Additionally, these relationships bestow "the ability independently to define one's identity that is central to any concept of liberty." Id. at 619, 104 S.Ct. 3244.

In Lawrence v. Texas, 539 U.S. 558, 123 S.Ct. 2472, 156 L.Ed.2d 508 (2003), the Court held that private homosexual relationships are a form of intimate conduct protected as a liberty interest against unreasonable public interference. This is so, the Court held, whether or not the participants are married. It is impossible to see how an unmarried heterosexual couple in a long-term relationship could receive less protection. We therefore conclude, on the authority of Lawrence, that the plaintiffs' relationship is a form of "intimate association" protected by the Constitution. So we had assumed in Montgomery, 410 F.3d at 938.

We next must consider whether Deputy Krieger interfered "directly" and "substantially" with the plaintiffs' right to associate intimately. Zablocki, 434 U.S. at 387, 98 S.Ct. 673. The Constitution prevents fundamental rights from being aimed at; it does not, however, prevent side effects that may occur if the government is aiming at some other objective. That much is clear from Califano v. Jobst, 434 U.S. 47, 98 S.Ct. 95, 54 L.Ed.2d 228 (1977). A federal disability-benefits program cut off support when beneficiaries married. The Court held that this does not violate the Constitution, even though it could be seen as a penalty on marriage (especially so when both spouses are disabled), because it reflects a view that one spouse usually supports the other. The program's incidental effect on marriage when both spouses are disabled, the Court held, differs from the sort of penalty that occurs when a law is designed to penalize the fundamental interest. Cf. Personnel Administrator of Massachusetts v. Feeney, 442 U.S. 256, 279, 99 S.Ct. 2282, 60 L.Ed.2d 870 (1979) (a government intends to achieve a particular result only when the law has been adopted because of, rather than in spite of or with indifference to, that result).

This is why being fired from a public job (after any hearing that may be required) does not create constitutional difficulties if it turns out that the ex-employee becomes moody and makes the family miserable; likewise the spouse of someone run over by a garbage truck may have a loss-of-consortium claim under state law but cannot invoke principles of substantive due process. Defamation by a public official, not itself a violation of the Constitution, see Paul v. Davis, 424 U.S. 693, 96 S.Ct. 1155, 47 L.Ed.2d 405 (1976), does not turn into a constitutional tort if the defamed party becomes impotent or loses the respect of his children. In these situations, and many others, the effect on intimate association is incidental to the defendant's activities.

The district court dismissed the plaintiffs' intimate-association claim because, in its view, "[t]he alleged conduct of [Deputy] Krieger simply does not rise to the level of preventing plaintiffs from having a meaningful relationship." To the extent that the district court demanded a more complete factual narrative in the complaint, it required more than is appropriate under Fed.R.Civ.P. 8(a). The plaintiffs' complaint alleges that Deputy Krieger acted "with the intent to cause Plaintiffs harm in their employment, as well as in their relationships with various businesses in Boone County, and finally, with each other" (emphasis added). It then went on to allege that Deputy Krieger's actions, in fact, "interfered with the Plaintiffs' rights to privacy [and] their right to freedom of association." These allegations suffice to put the defendants on notice of the plaintiffs' grievance.

We need not decide whether the complaint's allegations about Deputy Krieger's motive or objective are sufficient substantively, because the adverse consequences of his actions are not sufficiently serious. Official conduct that represents an abuse of office (as opposed to, say, the implementation of a statutory duty) violates the substantive component of the due process clause only if it "'shocks the conscience.'" Russ v. Watts, 414 F.3d 783, 789 (7th Cir.2005) (quoting Lewis, 523 U.S. at 846-47, 118 S.Ct. 1708). In Lewis the Court held that a death from a high-speed pursuit does not shock the judicial conscience even on the assumption that the pursuit was unnecessary and an arrest could have been effected in some other way. The Court stated that "only the most egregious" conduct may be condemned under its approach. 523 U.S. at 846, 118 S.Ct. 1708.

Watching people from a squad car is very far indeed from "the most egregious" conduct in which a deputy sheriff can engage. Deputy Krieger did not invade their bedroom or commit mayhem. Plaintiffs recognized who was trailing them. Thus even if Deputy Krieger's presence was ominous, plaintiffs had the security of knowing where to turn for redress if Deputy Krieger should decide to take more aggressive steps. They could have sought a restraining order from state court — yet we know from Castle Rock v. Gonzales, 545 U.S. 748, 125 S.Ct. 2796, 162 L.Ed.2d 658 (2005), that, even had such an order been issued and ignored, state rather than federal courts would be the right forum for enforcement.

Lewis calls for judicial modesty in implementing a federal program of constitutional torts that lie outside any specific clause of the Constitution. A modest role means leaving to ordinary tort litigation conduct of the sort in which Deputy Krieger is alleged to have engaged.

Plaintiffs say that Deputy Krieger's conduct is constitutionally obnoxious because it is harmful yet unjustified by any legitimate governmental interest. That's just another way to say that the conduct is tortious, but Lewis holds that substantive due process does not replicate state tort law. 523 U.S. at 848-49, 118 S.Ct. 1708. The language of "legitimate governmental interests" summons up the rational-basis inquiry under the equal protection clause, yet plaintiffs have not advanced a class-of-one (or class-of-two) claim under the equal protection clause. See Village of Willowbrook v. Olech, 528 U.S. 562, 120 S.Ct. 1073, 145 L.Ed.2d 1060 (2000); Lauth v. McCollum, 424 F.3d 631 (7th Cir.2005). Equal-protection analysis must be kept distinct from substantive claims under the Due Process Clause.

Asking whether the defendant had a "legitimate governmental interest" not only would depart from the "most egregious conduct" inquiry under Lewis but also would go far toward constitutionalizing state law, which Lewis said must not happen. As the complaint describes events, Deputy Krieger was acting outside the scope of his duties, disreputably and shamefully. But it is established that a violation of state law does not automatically violate the federal Constitution too. See Archie v. Racine, 847 F.2d 1211 (7th Cir.1988) (en banc) (collecting cases). It is essential to recognize a category (a large category) of acts that offend state law without offending the Constitution too. This is another point that Lewis made. See 523 U.S. at 848-49, 118 S.Ct. 1708 (conscience-shocking conduct is a very small portion of the misbehavior actionable under tort law).

In sum, the complaint includes enough descriptive matter to show that the claim is not sound under federal law.

3. Municipal Liability

Because we have determined that all of plaintiffs' claims under federal law were properly dismissed, there can be no § 1983 liability for Boone County either.

B. The State-Law Tort Claim

Finally, we must decide whether the district court properly dismissed the plaintiffs' state-law tort claim. Illinois law recognizes the tort of intentional infliction of emotional distress, which was pleaded by the plaintiffs in Count III of their complaint. See McGrath v. Fahey, 126 Ill.2d 78, 127 Ill.Dec. 724, 533 N.E.2d 806, 809 (1988). Among other requirements, a plaintiff's emotional distress must be "severe," and the defendant's conduct "extreme and outrageous," to give rise to liability for this tort. See Public Fin. Corp. v. Davis, 66 Ill.2d 85, 4 Ill.Dec. 652, 360 N.E.2d 765, 767-68 (1976).

In the district court's view, the plaintiffs' tort claim failed because the complaint did not allege that Deputy Krieger's conduct was "extreme and outrageous," and because the complaint did not allege a severe emotional injury. In making this determination, the district court appears to have applied Illinois' fact-pleading requirements for civil complaints. Yet this suit is in federal rather than state court, and each sovereign may apply its own procedural rules in its own courts. Rule 8 does not require plaintiffs to plead the "elements" of legal theories, or facts corresponding to each element. See Swierkiewicz, 534 U.S. at 510-11, 122 S.Ct. 992; Bartholet v. Reishauer A.G., 953 F.2d 1073, 1077-78 (7th Cir.1992).

When state and federal practice differ, federal rules adopted under the Rules Enabling Act prevail. See, e.g., Hanna v. Plumer, 380 U.S. 460, 85 S.Ct. 1136, 14 L.Ed.2d 8 (1965); Walker v. Armco Steel Corp., 446 U.S. 740, 100 S.Ct. 1978, 64 L.Ed.2d 659 (1980). This means in particular, that when federal courts entertain claims under state law — whether under the diversity jurisdiction of 28 U.S.C. § 1332 or, as here, the supplemental jurisdiction of 28 U.S.C. § 1367 — it is not necessary to plead facts matching elements of legal theories. See Hefferman v. Bass, 467 F.3d 596, 599 (7th Cir.2006); AXA Corporate Solutions v. Underwriters Reinsurance Corp., 347 F.3d 272, 277 (7th Cir.2003) ("Parties might prefer the notice-pleading regime of the Federal Rules of Civil Procedure over the fact-pleading approach that prevails in Illinois courts, but no one thinks that the Illinois rules of pleading are binding on the federal courts.").

Although the district court was correct in observing that the complaint did not contain all of the facts that would be necessary to prevail, "a filing under Rule 8 is not supposed to do that." Hoskins v. Poelstra, 320 F.3d 761, 764 (7th Cir.2003). Instead, the complaint "should be 'short and plain' and suffices if it notifies the defendant of the principal events." Id. (quoting Fed.R.Civ.P. 8(a)(2)). Here, the plaintiffs' factual allegations described the principal events giving rise to the suit and attached them to a right of action cognizable under state law. The plaintiffs' state-law tort claim must be reinstated. Because the federal claims have been resolved, the district court should relinquish supplemental jurisdiction so that the state law claims may be resolved in state court. 28 U.S.C. § 1367(c)(3).

III. CONCLUSION

For the foregoing reasons, we affirm the district court's judgment to the extent that it dismissed the plaintiffs' federal claims, but we vacate the decision to dismiss the balance of the action with prejudice. The case is remanded for further proceedings consistent with this opinion.