delivered the opinion of the court:
Plaintiff, American Pharmaseal, brought a products liability-action against defendant-appellant, TEC Systems (TEC), and three other defendants for property damages resulting from an explosion and fire at plaintiffs plant in March 1982. The fire began when fumes passing through a pollution control device (called an afterburner) manufactured by TEC ignited, causing a flashback fire and explosion. The afterburner was designed to dispose of volatile fumes generated by a laminating machine used in plaintiff’s business, and the two machines were connected by a series of ducts. The other defendants were: GFG Corporation (GFG), manufacturer of the laminator; Fredriksen & Sons Fire Equipment Company (Fredriksen), the supplier of plaintiff’s fire suppression system; and Greg Thomas Heating and Cooling (Greg Thomas), which installed the ductwork.
On March 3, 1986, the first day of trial, plaintiff settled with Greg Thomas and Fredriksen and filed its third amended complaint against the remaining defendants, TEC and GFG, over TEC’s objection. The court gave the defendants until March 10 to file their answers. The parties stipulated orally to the amount of plaintiff’s damages, from which they agreed they would deduct any damages attributed by the jury to plaintiff’s conduct, and then the settlement amounts. The following day, plaintiff settled with GFG and filed a written version of the stipulation, signed by plaintiff and TEC, which plaintiff had corrected to include the amount of its settlement with GFG.
On March 10, after the close of plaintiff’s case, TEC filed its answer, including new affirmative defenses to plaintiff’s breach of warranty counts. The court struck the affirmative defenses on plaintiff’s motion, finding that TEC should have raised the issues in its earlier pleadings and that the new defenses unfairly surprised the plaintiff. Plaintiff then withdrew two of its four claims against TEC and requested that only count I, alleging strict liability in tort, and count IV, alleging breach of an implied warranty of fitness for a particular purpose, be submitted to the jury. The jury found for plaintiff on both claims, but, on the strict liability count, it found plaintiff responsible for 28% of its damages based on TEC’s assumption of the risk defense. The court entered judgment against TEC in the amount of $155,234 on the strict liability claim, and in the amount of $215,603 on the breach of warranty claim.
TEC raises the following arguments on appeal: (1) the court erred in determining the amount of TEC’s liability on count I by reversing the agreed order of deductions from plaintiff’s damages, i.e., by deducting the settlement amounts before deducting - plaintiff’s 28% comparative liability; (2) the court erred in striking TEC’s affirmative defenses; (3) the court erred in deleting TEC’s warranty disclaimer before submitting the parties’ purchase contract to the jury; and (4) TEC’s assumption of the risk defense should have applied equally to plaintiff’s breach of warranty claim.
I
We turn first to TEC’s argument that the parties had stipulated not only to the amount of plaintiff’s damages, but to the manner in which the ultimate judgment was to be calculated. The text of the stipulation filed by plaintiff is as follows:
“The parties have agreed that as a result of the explosion and fire in the coater-laminator/afterburner system, American Pharmaseal sustained damages in the amount of $395,603. In the event that judgment is entered against one-or-bot-h-of the defendants, the parties agree that the court shall enter judgment in the amount of $395,603 minus any amounts assessed against American Pharmaseal for comparative negligence, then minus $130,000 $180,000 previously received by American Pharmaseal as settlement of its claim against defendants.” (Corrections made in original.)
The judgment entered by the court on count I of the complaint (to which the plaintiff’s comparative liability applied) was apparently calculated by deducting the settlement amounts before deducting plaintiff’s comparative liability, as follows:
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TEC filed a post-trial motion challenging, among other things, the court’s disregard for the stipulated method of calculating damages. TEC contends that the stipulation required the amount of judgment to be calculated as follows:
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After hearing oral arguments on the issue, the trial court concluded that the parties had not intended the result TEC claims, and that TEC had not adequately supported its contention that the stipulation should be applied literally. It then considered conflicting decisions cited by the parties on the issue of whether a reduction in damages for a plaintiff’s comparative fault should properly precede a deduction for settlement amounts received from other defendants. It concluded that the reasoning of the Michigan Supreme Court in Rittenhouse v. Erhart (1985),
A stipulation is an agreement made by the parties with regard to business before the court (see Village of Schaumburg v. Franberg (1981),
The stipulation in issue here indicates that the parties agreed to the amount of plaintiffs damages and the aggregate amount of plaintiff’s settlements with other parties. The stipulation appears to go farther, however, directing the court as to how it must assess the amount of judgment based on those stipulated facts and any comparative fault the jury might attribute to the plaintiff. That direction in effect purports to bind the court to the legal result the parties have determined must follow from their stipulated facts. In People v. Levisen (1950),
TEC argues that, even disregarding the stipulation, plaintiffs damages must first be reduced to the extent attributable to plaintiff’s assumption of the risk to give full effect to comparative fault principles. Relying on California and Washington decisions (Lemos v. Eichel (1978),
Plaintiff’s approach (deducting the settlement amounts first), adopted in a comprehensive decision by the Michigan Supreme Court in Rittenhouse v. Erhart (1985),
The Missouri Court of Appeals recently reached the same conclusion in Jensen v. ARA Services, Inc. (Mo. App. 1986),
In Illinois, however, a plaintiff’s comparative fault is assessed with respect to the conduct of all who contributed to the injury whether or not they are parties to the lawsuit. “Consideration of the negligence of both parties and nonparties to an action is essential for determining liability commensurate with degree of total fault. *** The purpose of considering the liability of nonparty tortfeasors is *** to determine the extent of plaintiff’s responsibility for his own injuries.” (Bofman v. Material Service Corp. (1984),
The jury in the instant case returned a verdict form containing the following language:
“Assuming that 100% represents the total combined responsibility of the plaintiff and of the defendant and of other persons for plaintiff’s damages, we find that the percentage attributable solely to plaintiff’s assumption of risk that was a proximate cause of plaintiff’s damage is 28 percent (%).” (Modified Illinois Pattern Jury Instructions, Civil, No. A45.06 (2d ed. Supp. 1986).) 1
The jury inserted 28 as the appropriate figure. We must conclude that the jury evaluated plaintiff’s conduct in relation to that of TEC and all other persons, as the verdict form indicates. There was expert testimony at trial indicating that a damper installed in the duct-work by Greg Thomas was seriously defective and that Fredriksen’s fire suppression system was not functional due to faulty wiring. In fact, plaintiff’s expert testified on cross-examination that of five specific problems in the system, only one was directly attributable to TEC’s afterburner. The jury therefore had ample evidence before it with regard to the contributory conduct of the settling defendants.
We note additionally that we cannot accept plaintiff’s contention that deducting the settlement amounts first will encourage settlements under Illinois law, because it is based on the incorrect assumption that Illinois juries compare only the relative conduct of the plaintiff and trial defendants. For example, under newly enacted section 2 — Ill. of the Code of Civil Procedure (Ill. Rev. Stat., 1986 Supp., ch. 110, par. 2 — 1116), a plaintiff may not recover for any of its damages if its contributory fault accounted for more than 50% of the proximate cause of the injury or damage. If plaintiff’s assumption is correct, the statute will serve as a strong disincentive for Illinois plaintiffs to settle unless they can settle with all defendants, because, with the elimination of each potential trial defendant, plaintiff’s proportionate fault with respect to the remaining defendants would rise, perhaps bringing it dangerously close to exceeding 50%. The new statutory scheme therefore heavily depends on the jury’s ability to evaluate plaintiff’s conduct with regard to all persons, whether or not they are parties to the suit.
We believe that the jury evaluated plaintiff’s comparative liability with respect to all causative conduct, and we conclude that its verdict can therefore most accurately be given effect by deducting plaintiff’s comparative liability from its overall damages before deducting the settlement amounts. We therefore hold that the trial court erred in calculating the judgment amount and reduce the damage award on count I to $104,834.16.
II
All of TEC’s remaining arguments relate, directly or indirectly, to the trial court’s alleged error in striking TEC’s affirmative defenses to the breach of warranty counts. TEC essentially contends that, because the court allowed plaintiff to file an amended complaint, it was obligated to permit TEC to file an answer to it, including new affirmative defenses, notwithstanding plaintiff’s having closed its case in the meantime.
It is true that, where a plaintiff files an amendment of substance to its complaint, the defendant must be afforded an opportunity to answer the amended complaint. (See Wende v. Chicago City Ry. Co. (1915),
It is within a trial court’s sound discretion to permit or refuse an amendment to pleadings, and its decision will not be reversed on appeal absent a clear abuse of discretion. (See, e.g., DiBenedetto v. County of Du Page (1986),
In DiBenedetto v. County of Du Page (1986),
We reject TEC’s final argument that its assumption of the risk defense ought to have been applied to the breach of warranty claim in the same manner that it was applied to the strict liability count. TEC admits that no Illinois case has yet decided whether a plaintiff’s assumption of the risk may be used as a partial defense to a breach of warranty claim. TEC additionally admits that it did not expressly plead assumption of the risk as an affirmative defense to the breach of warranty counts but argues that its factual allegations denying specific paragraphs of plaintiff’s complaint sufficiently raised the issue. We find it unnecessary to determine whether or not the defense was properly raised in TEC’s final pleading because, even so, it was raised for the first time as to the warranty counts after the plaintiff had closed its case. We find no error in the court’s refusal to permit defendant to add a unique and unprecedented defense theory after the close of plaintiff’s case. We therefore affirm the trial court’s award on plaintiff’s breach of warranty claim.
We reduce the damage award on count I to the amount of $104,834.16 and affirm the judgment as modified, and in all other respects.
Judgment modified and affirmed.
DUNN and WOODWARD, JJ., concur.
Notes
The verdict form quoted is a modified version of the standard form applicable where a plaintiff’s contributory negligence is in issue. The standard verdict form must ordinarily be accompanied by IPI Civil, No. A45.05, a similarly worded jury instruction. (Barreto v. City of Waukegan (1985),
