This is an action by the plaintiff farmers, Norbert and Grace Hein, for damages arising from the consumption by their dairy and beef herd of a feed mixture containing too much urea, a nitrogenous animal food additive.

On December 30, 1966, Norbert Hein purchased twelve 80-pound bags of urea for his cattle herd. He purchased the urea at defendant Forest Torgeson's place of business from Melvin Prestrud, an employee of Torgeson's. Torgeson, a sole trader, was doing business as Navarino Feed Supply Company, located in the town of Navarino, in Shawano county. It was not a common practice to sell the urea without mixing it at Torgeson's feed mill. In fact, he testified that it was the first time in ten years that the urea was sold outright. Although Prestrud was present at the time of the actual sale, Torgeson was not there. Hein testified that Prestrud, in response to his question regarding mixing instructions, merely stated that the cattle would not eat a feed mixture which was too heavily loaded with urea. Prestrud acknowledged this statement and denied giving Hein any precise mixing instructions. According to Prestrud, he said nothing when Hein stated that he thought one percent was the proper mixture of urea to other feed materials. Prestrud testified that one percent was the correct mixture.

The feed-grade urea actually shipped to Torgeson was in bags which were marked as fertilizer-grade urea. When he learned of the difference in labels, Torgeson testified that he immediately telephoned his supplier and was reassured that the contents were, in fact, feed-grade urea. Torgeson was told by his supplier that the reason for placing the urea in fertilizer bags was that this achieved a reduction in shipping rates. The only difference between the bags marked feed-grade urea and those marked fertilizer urea was that the feed grade bags contained a warning and instructions as to the proper use of the urea, while the fertilizer-grade urea bags contained no warning and no instructions. Torgeson testified that the actual difference between feed and fertilizer urea was minimal — the latter containing one percent more nitrogen content and lacking a conditioner. Torgeson testified that he continued to use the urea shipment after this sale without incident.

Hein returned to his home with the urea and proceeded to mix approximately one and one-half of the 80-pound bags (120 pounds) with 20 bushels of oats and a large quantity of corn. He made the mix in his two-ton Bearcat mixer mill. The following day Hein fed the feed mixture to his cattle. As a result of the overmixture of urea and feed grain his entire herd became sick and nine animals died. Hein also testified that as a result of the accidental poisoning of his herd his milk was disqualified from sale in the Grade A market. It was not until mid-February that he was able to again sell Grade A milk.

After the commencement of their action against the defendant in October, 1967, a jury trial was held during May, 1969, and the trial court submitted a special verdict to the jury. Although the jury found the defendant blameless and that the plaintiffs were totally negligent, it determined damages to the plaintiffs as $2,305. Plaintiffs' motions after verdict were denied and judgment for the defendant was entered on the verdict. Plaintiffs appeal.

WILKIE, J.

Five issues are raised on this appeal:

1. Did the trial court err in failing to find the defendant causally negligent as a matter of law?

2. Did the trial court err in failing to answer the special verdict questions relating to defendant's failure to warn plaintiffs of the danger of an improper urea mixture?

3. Did the trial court err in failing to instruct the jury (1) that as a matter of law defendant was negligent in failing to have proper mixing instructions and warnings on the urea packages; and (2) as to all elements of damages?

4. Did the trial court err in failing to change the jury's answer to the special verdict damage question?

5. Should a new trial in the interest of justice be ordered?

1. Was Torgeson negligent as a matter of law? Plaintiffs' principal contention on this appeal is that the defendant's undisputed sale of urea was made in an improperly labeled container which violated sec. 94.72 (2), Stats., and that this violation constituted negligence per se chargeable to the defendant. From the record it is clear that this contention was never brought to the attention of the trial court during trial or on motions after verdict. This court will not consider new grounds of relief which are not adequately brought to the attention of the trial court. While this rule is one of administration and not of power, there is no compelling reason in this case to depart from the general practice of refusing to consider this contention. In the instant case, the jury found the plaintiffs to be totally causally negligent in the deaths and sickness caused to their cattle. It is abundantly clear from the record that this determination is overwhelmingly supported by credible evidence which all points to the fact that the plaintiffs, knowing that they should be careful about the mixture, went ahead in a careless manner with the resulting over-mixture

2. Was it error when the trial court failed to rule as a matter of law that defendant's failure to have proper mixing instructions and warnings caused plaintiffs' damages? Plaintiffs argue further that the defendant had a common-law duty to warn them of the dangerous propensities of cattle feed too heavily loaded with urea, and his failure so to warn violated this duty and so clearly caused their damages. Their contention is that the trial court committed error when it failed to so rule as a matter of law. In support of their contention, plaintiffs cite this court's decisions in Strahlendorf v. Walgreen Co. and Smith v. Arco Co.

While Strahlendorf does stand for the proposition that a retailer may render himself liable for a failure to adequately warn of a product's harmful propensities, this court specifically held the causation issue was a question of fact for the jury to determine. In this respect Strahlendorf does not support the position taken here by the plaintiffs. In that case this court refused to find causally negligent as a matter of law a retailer's failure to place a proper warning on a plastic toy airplane and stated:

". . . However, plaintiff Harry v. Strahlendorf, father of Butchic and Karen, testified that as a result of testing two of the three planes he became aware of the fact that they were dangerous and that the remaining third plane should not be intrusted to Butchie. This is why he hid the plane from Butchic. From this, the jury reasonably could have determined that the lack of a proper warning on the instruction card was not a substantial factor in causing the accident to Karen because the father had already been alerted to any danger such printed warning might have accomplished. This reasoning would justify the jury's finding that defendant's failure to warn was not causal." (Emphasis added.)

In the instant case plaintiff Norbert Hein testified that he became aware of the feeding value of urea through reading trade journals and other literature. While he testified he asked defendant's employee how to mix the urea, the record also indicates Hein was aware that the appropriate mixture was approximately one percent urea to the balance of the ingredients. The jury could have validly concluded Hein was aware of the dangerous propensities of urea. Strahlendorf is applicable to the instant case in mandating:

"The causation issue with respect to the found negligence on the part of defendant presented an issue of fact for the jury to determine, and the trial court was correct in refusing to disturb its finding."

While in Smith v. Atco Co. this court did say that in certain instances the "causal connection may be so clear upon undisputed facts as to make the determination of causation one of law for the court, while in other situations it becomes one of fact for the jury," the court there held that the violation of sec. 94.67, Stats., by virtue of a misbranded can of wood preservative fell within the latter category. Assuming the trial court had determined the causation issue as there was no question relating thereto in the special verdict, the supreme court found no credible evidence to sustain such a finding because there was no evidence that the plaintiff had actually relied on the label which stated "When dry, wood treated with Penta-Mix can be handled freely without danger of contamination to humans or animals."

In the instant case there was ample evidence that the plaintiff, Norbert Hein, was aware of both the contents of the bag labeled fertilizer-grade urea and its dangerous propensities. While the jury might have concluded that plaintiff relied on the observation of defendant's employee that the cattle would not eat feed too heavily loaded with urea, it is clear from its apportionment of total causal negligence to plaintiffs it did not. This is not a case where the causal connection between the failure to warn of dangerous propensities and the harm caused is so clear that the jury's determination ought to have been supplanted. The evidence was that the appropriate mixture of urea to feed was one percent. Plaintiff Norbert Hein knew this and the jury was justified in believing Hein was adequately advised of the dangerous propensities of urea.

3. Did the trial court err in failing to instruct the jury (1) that the defendant was negligent as a matter of law for failing to have proper mixing instructions and warnings on the urea container; and (2) as to all elements of damages? Plaintiffs argue that the trial court ought to have instructed the jury that the defendant was negligent as a matter of law for failing to have proper mixing instructions and warnings on the urea containers. Plaintiffs contend that the instruction given was inadequate as it did not sufficiently advise the jury of the defendant's duty to warn of the inherently dangerous qualities of urea. Plaintiffs' argument must fail for two reasons. First, they did not object to the instruction given nor did they offer to amplify that instruction in any particular. Second, the instruction given was adequate.

This court has often reiterated the rule that the failure to request inclusion of instructions or a failure to object to those given operates to waive such alleged error:

"Appellant argues that the trial court committed several errors with respect to submission of issues and instructions to the jury. The record does not disclose any requests made by appellant's counsel either for questions to be submitted in the special verdict or for the instructions he now maintains should have been given. Thus, appellant is now precluded from raising these questions."

Although the rule providing for this waiver is not inflexible the requirement for an objection to be made to the trial court has been waived only in extraordinary situations and this is not such a case, particularly in view of the fact that the instruction as given did sufficiently instruct the jury on defendant's duty to warn:

". . . A person fails to exercise ordinary care when, without intending to do any wrong, he does an act or omits a precaution under circumstances in which a person of ordinary intelligence and prudence ought reasonably to foresee that such act or omission will subject the person or property of himself or another to unreasonable risk of injury or damage. Negligence may also be said to mean a want of, or failure to exercise that care and caution which a person of ordinary intelligence and prudence usually exercises in a like or similar situation, work, or operation, under like or similar circumstances."

Since the entire trial was conducted along the lines of Torgeson's failure to advise plaintiffs of the proper urea mixing instructions and the potential harmful effects of an improper ratio of urea to feed, it is clear that this instruction was sufficient to the jury as to defendant's duty of care. The jury could have validly concluded that plaintiff Norbert Hein was aware of the potential toxicity of an overmixture of urea in cattle feed. As pointed out in Strahlendorf, a jury may validly conclude that a failure to warn of potential danger is not causal.

With respect to plaintiffs' argument that the trial court ought to have instructed the jury as to all the elements of damages, this court's decision in Essock v. Mawhinney clearly negatives such contention. In Essock the contention on appeal was that the trial court erred in instructing the jury as to the measure of damages. The trial court instructed such measure of damages "`is such sum as will reasonably compensate . . . for such loss in property value, if any. . . .'" According to this court:

". . . The instruction might well have spelled out the proposition that the loss was the difference between the total of prices actually received and the prices which the jury reasonably believed would have been received but for the negligence of the Loan Company. Nevertheless, the instruction given was not erroneous and no instruction covering the point had been requested by the Loan Company." (Emphasis added.)

Similarly in the instant case, the instruction that "[t]he amount to be inserted by you in answer to the damages question is for you to determine from the evidence" was not error and a more complete instruction was not requested.

4. Did the trial court err in failing to change the jury's answer to the damages question? Plaintiffs also argue that the jury's award of damages was so inadequate that the trial court erred in refusing their request, after verdict, to change that award. Of course, when there is no finding of negligence on the part of a defendant which is necessary if he is going to be held liable for the damages to injured parties, the question for this court's determination in reviewing a damage finding is not whether the award is adequate but whether such assessment is perverse. We find no perversity here. Although the award for each of the nine dead milk cows was $250 per cow, when the plaintiffs' expert actually testified that eight of the cows were valued at an average of $375 per animal and one at approximately $425, the expert was testifying as to averages and the failure of the jury to adopt the expert's evaluation was not perverse. Furthermore, the jury awarded $55 for veterinarian fees which was the amount actually shown by receipt. With respect to jury assessment of damages, this court has many times stated that a mere low damage award is not sufficient to establish perversity in the verdict:

"If there is any credible evidence which under any reasonable view supports the jury finding as to damages, especially when the verdict has the approval of the trial court, this court will not disturb the finding. Even when it still appears that the award is low, this court will not interfere with the jury's finding, unless the award is so unreasonably low as to shock the judicial conscience. . . ."

We conclude that the jury award of damages was not perverse and that there was no error on the part of the trial court in refusing to change the jury's answer to the damages question.

5. Should a new trial be awarded in the interest of justice? While this court can, pursuant to sec. 251.09, Stats., reverse a judgment on the ground that justice has miscarried, it has often stated such power "is exercised with great caution and :sparingly." It is our clear conclusion here that justice did not miscarry.

By the Court. — Judgment affirmed.