Appellee-Pinyan was employed as a truck driver. His employer leased trucks from Hertz Corporation which were equipped with tires manufactured by appellant-Firestone. In 1975 the truck he was driving left the road and crashed, resulting in the death of his passenger and in injuries to Pinyan. Pinyan instituted suit against Firestone and Hertz for personal injuries sustained by him, alleging that the crash was the result of the blowout of a defective tire manufactured by Firestone and placed on the truck by Hertz. The jury returned a verdict in his favor and against Firestone in the amount of $375,000 and a verdict in favor of Hertz. This is an appeal from the order denying Firestone’s motion for new trial.
1. During the second day of the first of two trials, Pinyan’s counsel elicited testimony concerning recall of Firestone’s tires. However, the tires involved in the case on trial had never been the subject of any recall. A defense motion for mistrial was made and granted. The jury was discharged and instructed “not to discuss what has transpired in your presence and hearing with anyone.” On voir dire of prospective jurors for the second trial, Firestone objected to trying the case with jurors who had been exposed to the panel discharged after the mistrial and made an oral motion for continuance on that ground. This motion for a continuance was denied. In its motion for new trial, Firestone set forth as error the trial court’s refusal to grant the continuance and also asserted that “[t]he jurors knew that the trial immediately [preceding] the one on which they sat ended in a mistrial and at least one of the jurors heard that the mistrial resulted from something having to do with the recall of tires.” In support of its motion for new trial, Firestone submitted the affidavit of one of the jurors, which contained the following statements: “I was aware at the time of my selection as a juror and during the trial of this case that a prior trial of this case had concluded immediately before I was selected as a juror and had ended in a mistrial. I acquired such knowledge outside the courtroom in the halls through conversations with other persons summoned for jury service in the Cobb Superior Court on May 29,1979, and from other individuals in the halls outside the courtroom. I, myself, heard in these conversations that the mistrial resulted from something having to do with the recall of tires. I know from conversations I overheard between fellow jurors sitting on the trial of this case with me that they were aware that a previous trial between the same parties was declared a mistrial, because they stated in my presence that they *344 knew about it.”
“The affidavits of jurors may be taken to sustain but not to impeach their verdict.” Code Ann. § 110-109. “ ‘The rule (of Code § 110-109) has a valid and salutary application in disallowing jurors to impeach their verdicts on the basis of statements made to one another in the jury room and the effect of those statements upon the minds of the individual jurors.’ [Cit.]... ‘Under this rule of law, it has been repeatedly held that the affidavit of a juror will not be received to show that the jurors in arriving at their verdict acted upon private knowledge or upon matters which were not in evidence.’ [Cits.]”
Central of Ga. R. Co. v. Nash,
2. A passenger in the truck driven by Pinyan at the time of the crash was killed. Prior to the instant action suit for wrongful death was instituted against Pinyan and his employer in Fulton County by the deceased’s husband and children, the allegations being that the crash and resulting death were caused solely and proximately by the gross negligence of Pinyan and his employer. A third-party complaint was served on Firestone, in which Pinyan and his employer alleged that because of negligent manufacture of the tires or by virtue of strict liability, Firestone was liable for all or part of the wrongful death claim. Subsequently, Pinyan and his employer allowed the entry of a consent judgment against them in favor of the plaintiffs in *345 the Fulton County case and, on the same date, dismissed their third-party complaint against Firestone.
In the instant case Firestone attempted to introduce into evidence certified copies of the complaint, thifd-party complaint, consent judgment and dismissal order in the Fulton County litigation. The trial judge refused to admit these documents into evidence. Firestone enumerates this ruling as error, contending that the documents were evidence which would collaterally estop Pinyan from denying that his own gross negligence was the sole proximate cause of the crash which forms the basis of his claim for damages. Firestone also urges that, had the evidence been admitted, its motion for directed verdict should have been granted.
The threshold question is whether, in the instant case, Firestone is entitled to assert a plea of collateral estoppel based upon the Fulton County consent judgment. “In order for the doctrine of res judicata to apply, or for a party to take advantage of the doctrine in a subsequent suit brought against him after the termination of the first, there are three prerequisites to which the situation must conform. They are: (1) identity of parties; (2) identity of the cause of action; and (3) adjudication by a court of competent jurisdiction. All of these elements must concur. [Cits.]”
Lewis v. Price,
Application of the above stated rules to the factual situation in the instant case reveals the following: The Fulton County suit was to recover for the wrongful death of the passenger. Pinyan was a defendant in that suit and Firestone was a third-party defendant. Thus, as between Pinyan and Firestone, the only issue which could have been litigated was Firestone’s secondary liability to Pinyan for the passenger’s death. Code Ann. § 81A-114;
Dorsey Heating &c. Co. v. C. C. Dickson, Inc.,
Firestone urges that the documentary evidence relating to the Fulton County lawsuit was admissible under Code Ann. § 38-114 as an admission against interest. This argument is without merit. Even assuming that any admissions made by Pinyan in the former suit against him for wrongful death would be “pertinent to a question involved in the case on trial” for his own personal injuries
(Central of Ga. R. Co. v. Goens,
3. Error is enumerated upon the insufficiency of Pinyan’s evidence to establish Firestone’s strict liability under Code Ann. §
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105-106. In order to impose strict liability on the manufacturer of a product, “the plaintiff must show that the manufacturer’s product when sold by the manufacturer was defective.”
Center Chemical Co. v. Parzini,
4. The trial judge refused to give the following requested jury charge: “I charge you,..., that in a suit for damages if it appears that there intervened between the act of a defendant and the damage sustained by the plaintiff, an independent wrongful act which was the direct and proximate cause of the alleged injury and damage to the plaintiff, then and in that event plaintiff would not be entitled to recover of the defendant alleged to have acted wrongfully prior to the intervening act of the other party.” Firestone enumerates as error the court’s failure to charge in accordance with the request.
Assuming without deciding that the theory of intervening proximate cause is even applicable to a strict liability case where the liability is not predicated on negligence and foreseeability, this enumeration is not a viable one. First, the request was incomplete and inaccurate. “ ‘While the general rule is that if, subsequently to an original wrongful . . . act, a new cause has intervened, of itself sufficient to stand as the cause of the misfortune, the former must be considered as too remote, still if the character of the intervening act claimed to break the connection between the original wrongful act and the subsequent injury was such that its probable or natural consequences could reasonably have been anticipated, apprehended, or foreseen by the original wrong-doer, the causal connection is not broken, and the original wrong-doer is responsible for all of the consequences resulting from the intervening act.’ ”
Williams v. Grier,
Secondly, we do not find any evidence which would support a charge on intervening proximate cause. “The principle of remoteness is applicable to situations where an intervening agency, such as negligence of another, preponderates in causing the plaintiff’s injury. [Cit.]”
General Motors Corp. v. Davis,
*349 Furthermore, the record reveals that the trial court gave a full and complete charge on the issue of causation, including the following: “[T]he defendant, Firestone Tire and Rubber Company, states that it is not indebted to the plaintiff in the sum sued for or in any amount. This defendant contends that the event sued upon occurred either as a result of the plaintiff’s own negligence or as a result of the actions of another for whose negligence the defendant, Firestone,..., is in no way responsible. This defendant specifically denies that the occurrence sued upon was caused by a failure of any tire manufactured by the Firestone Tire and Rubber Company. This defendant also specifically denies the existence of any defect in any tire manufactured by Firestone .. . which may have been placed on the vehicle driven by the plaintiff, James Frank Pinyan[T]he law does not permit you to speculate or guess as to whether a defendant or defendants committed a wrongful act. . . , and, if so, whether such wrongful act caused damage to the plaintiff. On the contrary, a wrongful act on the part of the defendant must be proved, and in the absence of such proof, you must find for the defendants. I charge you that it is not necessary for the defendants to prove to you what caused the occurrence complained of in plaintiff’s complaint, but if the preponderance of the evidence shows that the defendants were not guilty of any wrongful act or omission, then it would be your duty to return a verdict for the defendants although the cause oí1 the occurrence may be a matter of speculation.” The charge, as given, set forth Firestone’s defensive contentions as to causation in fact and the law applicable thereto. The jury resolved the factual questions concerning causation contrary to those contentions. We find no error for any reason urged on appeal.
5. The trial court refused to admit into evidence a portion of the Federal Motor Carrier Safety Regulations and to give the following charge requested by Firestone: “I charge you,..., that a portion of the Motor Carrier Safety Regulations of the Public Service Commission of Georgia provides: ‘Unless specifically authorized in writing to do so by the motor carrier under whose authority the motor vehicle is being operated, no driver shall transport any person or permit any person to be transported on any motor vehicle other than a bus.’ ” It is urged thát since Pinyan had an unauthorized passenger in the truck, the regulation and charge were pertinent to the issue of Pinyan’s negligence per se with regard to the incident and whether that negligence, rather than the defective tire, was the sole proximate cause of his injuries. We do not agree.
“As provided in Code Ann. § 105-106, the manufacturer is liable if his product, ‘when sold . .. was not merchantable and reasonably suited to the use intended and its condition when sold is the
*350
proximate cause of the injury sustained.’ ”
Center Chemical Co. v. Parzini,
6. The trial court refused to allow one of Firestone’s witnesses to testify as to his opinion on the role the left front tire may have played in causing the vehicle to leave the road. Exclusion of the witness’ answer to this question is enumerated as error. Firestone made a proffer of the excluded testimony that the witness would have testified that, in his opinion, the tire played no role in the truck leaving the roadway. This evidence, it is urged, supported Firestone’s contention that the crash resulted from Pinyan’s own acts and not from a tire blowout.
Error in excluding this testimony, if any, was clearly harmless under the circumstances. Testimony identical to that excluded, as demonstrated by the proffer, was given by at least one other witness and substantially the same evidence was given by at least two other witnesses.
Southern R. Co. v. Garner,
7. Firestone urges that the trial court erred in entering judgment on the verdict. This enumeration is predicated upon Firestone’s contention that the jury returned its original “verdict” against both Firestone and the other defendant, Hertz, which verdict the court refused to accept and that the jury subsequently returned a verdict finding only against Firestone and upon which judgment was entered. The record reveals, however, that the jury was obviously confused as to whether they had the power to apportion damages between the two defendants, they returned to the courtroom where they intimated they had found against both defendants, specifying no amounts, but that they wanted to apportion damages. The judge instructed as to this issue and the jury foreman indicated that “we would want to discuss the matter further.” The jury then left for further deliberations and returned the verdict finding only against Firestone.
There was no error in entering judgment on this verdict, as it was the only “verdict” in the case. The inquiry and colloquy concerning apportionment of damages was not a verdict. “[Wjhere the announcement by the jury is an inquiry — and not a pronouncement, ‘[t]he law allows the jury all reasonable opportunity, before their verdict is put on record and they are discharged, to discover and declare the truth according to the judgment.’ [Cit.] ”
Sears, Roebuck
*352
& Co. v. Chandler,
8. Arguments that the verdict should be set aside as excessive are without merit.
Realty Bond &c. Co. v. Harley,
9. Finally, Firestone argues that “the totality and cumulative effect of all the above errors” prevented it from receiving a fair trial. We find this enumeration and argument uncompelling. “ ‘Any error shown upon the record must stand or fall on its own merits and is not aided by the accumulative effect of other claims of error.’ ”
Hess Oil &c. Corp. v. Nash,
Judgment affirmed.
