[1] All four of appellant’s assignments of error are that the trial court erred in directing verdict for Murdock, Conner Homes, Moss, and Cardwell. His first argument is that a procedural error was committed in allowing Murdock’s and Conner Homes’ motion *310because it was not timely since it was not made immediately after the close of defendant’s evidence, but was made after the charge to the jury. Neither at trial nor on appeal has appellant suggested there might be other evidence he could have offered if he had known the motion was going to be made. Indeed, it seems clear from the record that as a matter of convenience the parties had agreed to put all their formal motions and stipulations in the record after the jury had retired. Appellant’s argument is without merit.
Appellant also argues that it was procedurally incorrect for the trial judge to withold his ruling on the directed verdict until after the jury announced that it was unable to reach a verdict. To support his argument, appellant relies on Hamel v. Young Spring & Wire Corp., 12 N.C. App. 199, 182 S.E. 2d 839, cert. denied, 279 N.C. 511, 183 S.E. 2d 687 (1971). In Hamel, the trial judge did not rule on the motions for directed verdict until after the jury returned a verdict. This Court said:
We do not approve of this procedure and think it preferable to rule upon a motion for a directed verdict prior to the submission of a case to the jury. After a case has been submitted to a jury, the proper motion to be ruled upon at that time is a motion for judgment notwithstanding the verdict under Rule 50.
Hamel v. Young Spring & Wire Corp., 12 N.C. App. at 205, 182 S.E. 2d at 843. The Court’s statement that it is preferable to rule on the motion before submitting the case to the jury is hardly grounds for reversal in the instant case. Moreover, the situation in Hamel is distinguishable from this case because in Hamel the jury had reached a verdict and a motion for judgment notwithstanding the verdict would have been appropriate, but here there was no verdict from which to request a judgment notwithstanding the verdict.
[2] Appellant’s next argument is that even if the motion for directed verdict was timely, it should not have been granted as a matter of law because Murdock and Conner Homes had the burden of proof. We do not agree. A verdict may be directed for the party with the burden of proof when the credibility of the movant’s evidence is manifest as a matter of law. North Carolina National Bank v. Burnette, 297 N.C. 524, 256 S.E. 2d 388 (1979); E. F. *311 Hutton v. Stanley, 61 N.C. App. 331, 300 S.E. 2d 463 (1983); 9 C. Wright & A. Miller, Federal Practice and Procedure § 2535 (1971). In Burnette, the Court listed three recurrent situations where credibility is manifest:
(1) Where non-movant establishes proponent’s case by admitting the truth of the basic facts upon which the claim of proponent rests, [citations omitted.]
(2) Where the controlling evidence is documentary and non-movant does not deny the authenticity or correctness of the documents, [citations omitted.]
(3) Where there are only latent doubts as to the credibility of oral testimony and the opposing party has “failed to point to specific areas of impeachment and contradiction.” [Kidd v. Early, 289 N.C. 343, 370, 222 S.E. 2d 392, 410 (1976).]
North Carolina National Bank v. Burnette, 297 N.C. at 537-38, 256 S.E. 2d at 396.
In the instant case, credibility was manifest under the third category set forth in Burnette. Latent doubts are “doubts which stem from the fact that plaintiffs are interested parties.” Kidd v. Early, 289 N.C. at 371, 222 S.E. 2d at 411. Aside from any consequences resulting from appellant’s introduction of plaintiff’s complaint into evidence, all the evidence at trial, viewed in the light most favorable to appellant, unequivocally shows that Uzoh either suddenly stopped or almost stopped on the highway, his car was hit from behind by Moss’ truck, it crossed the center line, and then it collided with Conner Homes’ truck. Regardless of whether Uzoh came to a full stop or almost stopped, it is clear that his conduct constituted negligence as a matter of law. Uzoh violated G.S. 20441(h) which provides, in part: “No person shall operate a motor vehicle on the highway at such a slow speed as to impede the normal and reasonable movemant of traffic except when reduced speed is necessary for safe operation or in compliance with law; . . .” Violation of the standard of care required by G.S. 20441(h) is negligence per se. Page v. Tao, 56 N.C. App. 488, 289 S.E. 2d 910, affirmed per curiam, 306 N.C. 739, 295 S.E. 2d 470 (1982). Appellant’s evidence, introduced in their case in chief, neither contradicted any evidence of Uzoh’s negligence nor materially impeached the appellees, it only tended to show that the *312weather was clear, the road in front of Uzoh’s path was straight and unobstructed, the speed limit was fifty-five miles per hour, Uzoh’s death was due to injuries received in the collision, and there was no evidence of alcohol or other drugs in his blood. On cross-examination, appellants attempted to impeach Moss and Murdock, but the contradictions brought out on cross-examination were trivial. They did not tend to show a lack of credibility, and had no bearing on the issue of Uzoh’s negligence. The contradictions concerned the following questions: whether Uzoh came to a full stop, or almost stopped; how far away Moss’ truck was before Murdock saw it; how fast Murdock thought Moss was going; whether Uzoh was 100 feet away or 100 yards away before Mur-dock saw him; whether smoke was coming from Uzoh’s tires; and whether Moss saw Uzoh when he was 235, 750, or 1,500 feet away. These contradictions have no bearing on the issue of Uzoh’s negligence, and they do not tend to show any contributory negligence by Murdock. There was no evidence which tended to refute the allegations that Uzoh was negligent, and his negligence was the proximate cause of the collision, and, aside from latent doubts, there were no doubts as to the credibility of the witnesses, therefore no reasonable jury could have drawn any contrary inferences. In short, the credibility of the movants’ evidence was manifest, and directed verdict in the movants’ favor was proper.
[3] Additionally, credibility was manifest under the first category set forth in Burnette because appellant established Murdock’s and Conner Homes’ case by admitting that Uzoh was negligent when he introduced Murdock’s complaint into evidence. The following occurred out of the presence of the jury:
Mr. Billings [counsel for Ratliff]: ... I would like to introduce in evidence on behalf of Uzoh the Murdock complaint. I don’t know the procedure for doing that.
Mr. Miller [counsel for Moss and Cardwell]: The defendants Moss and Cardwell will object.
Court: I understand, unverified. Any objection? Mr. Cranfill [counsel for Murdock and Conner Homes]: No sir.
*313Court: No objection. The Murdock complaint will be received into evidence with respect to Claude Tolson Murdock. The objection—
Mr. Miller: ... I still object.
Court: Objection is sustained with respect to Moss and Card-well. The complaint comes in then in terms of Murdock only.
Mr. Miller: If your Honor please, ... if I may qualify that objection.
Court: All right, you may.
Mr. Miller: Is to that portion of the complaint as it relates to the two defendants that I represent. That is the purpose of my objection. Other than that, I have no objection.
Court: All right. Then the ruling is that it is sustained with respect to that portion of the complaint.
Murdock’s complaint, which is his judicial admission, McCormick on Evidence § 265 (2d ed. 1972), can only be Offered as competent evidence as against Murdock, and the trial judge gave an appropriate limiting instruction. As against Murdock, however, it was offered without any limitations. The complaint, after alleging the circumstances of the collision alleges, in paragraph seven:
The aforementioned accident occurred as the direct and proximate result of the negligence of Patrick Enyi Uzoh in that he:
(a) Operated a vehicle upon the highways of the State of North Carolina without maintaining proper control over it.
(b) Operated a vehicle upon the highways of the State of North Carolina without maintaining a proper lookout.
(c) Operated a vehicle upon a highway of the State of North Carolina to the left side of the center line of the highway while meeting a vehicle being operated in the opposite direction.
*314(d) Brought his vehicle to a sudden and unexpected stop upon a highway of the State of North Carolina at a time when he knew or should have known that this would cause a collision.
(e) Attempted to stop a vehicle upon a highway of the State of North Carolina without first seeing that such movement could be made in safety.
(f) Attempted to stop a vehicle upon a highway of the State of North Carolina at a time when the operation of another vehicle might be affected by such movement, without giving the clear and plainly visible signal required by law.
A party offering into evidence, without limitation, as in the instant case, a portion of his opponent’s pleading, is bound thereby. Smith v. Goldsboro Iron & Metal Co., 257 N.C. 143, 125 S.E. 2d 377 (1962); Smith v. Burleson, 9 N.C. App. 611, 177 S.E. 2d 451 (1970). Smith v. Burleson also involved a car accident. The defendants were two brothers, Rabón and Tony Burleson. Tony died in the accident. At trial, plaintiffs witness, who had been a passenger in Tony’s car, testified about the events that led up to the accident. She said that Rabón and Tony were driving west on Highway 64-70 at a speed between eighty and one hundred miles per hour. Tony pulled into the left lane to pass Rabón. Tony and Rabón overtook plaintiffs car, which was driving at fifty-five miles per hour in a westerly direction. Rabón pulled out into the left lane in front of Tony to avoid hitting plaintiff. When Rabón did this, Tony hit his brakes to avoid hitting Rabón, and skidded. The witness did not remember anything else about the accident. Defendants, however, offered evidence which filled in all the missing pieces of plaintiffs case. Rabón admitted he pled guilty to reckless driving in connection with the accident. He also introduced a portion of plaintiffs complaint which alleged that Rabón had been driving very fast, he collided with Tony’s car causing Tony to lose control of his car and hit plaintiffs car, which caused it to drive off the road, into an embankment. The Court held that Rabon’s evidence, including the portion of plaintiffs complaint which he introduced, established that he was negligent, Rabón was bound by the portion of plaintiffs pleading which he introduced without limitation, and, as there was no factual issue of negligence remaining, a directed verdict for plaintiff was proper.
*315In this case, appellant offered no evidence which materially contradicted the allegations of negligence in paragraph seven of Murdock’s complaint. Murdock testified that Uzoh’s vehicle came to a complete stop. Although Moss said both that Uzoh had completely stopped, and that he was not sure if Uzoh had completely stopped, this is only a slight variation in the evidence. Since Mur-dock’s evidence as to Uzoh’s negligence was not contradicted by appellant, and appellant admitted the truth of Murdock’s allegations by introducing his complaint, the credibility of Murdock’s evidence was manifest as a matter of law according to the first example set forth in Burnette, and Murdock’s motion for a directed verdict was properly granted. Similarly, as it was undisputed that Murdock was driving Conner Homes’ truck, and the parties stipulated the amount of damages sustained by Conner Homes was $24,231.00, the trial court properly granted Conner Homes’ motion for a directed verdict.
Appellant’s next argument is that the trial court erred in granting defendants Moss’ and Cardwell’s motions for directed verdict. A defendant’s motion for directed verdict may be granted only if, as a matter of law, the evidence, when viewed in the light most favorable to plaintiff, is insufficient to justify a verdict for plaintiff. Kelly v. International Harvester Co., 278 N.C. 153, 179 S.E. 2d 396 (1971). As we mentioned above, although Murdock’s complaint was Murdock’s judicial admission, appellant, when he offered it into evidence, became bound by the allegations in the complaint which were not contradicted by other evidence at the trial. Appellant, therefore, has admitted that Uzoh negligently stopped or attempted to stop his car on the highway. Since appellant has admitted his negligence was the proximate cause of the accident, he was contributorily negligent as a matter of law. In order for contributory negligence to apply plaintiff need not be actually aware of the unreasonable danger he has exposed himself to by his conduct, he may be contributorily negligent if he has ignored unreasonable risks which would have been apparent to a prudent person exercising ordinary care. Smith v. Fiber Controls Corp., 300 N.C. 669, 268 S.E. 2d 504 (1980). The negligence of plaintiff need not be the sole proximate cause of his injury, his contributory negligence bars his recovery if the negligence is one of the proximate causes of the injury. Wallsee v. Carolina Water Co., 265 N.C. 291, 144 S.E. 2d 21 (1965); U.S. Industries, Inc. v. *316 Tharpe, 47 N.C. App. 754, 268 S.E. 2d 824, review denied, 301 N.C. 90, 273 S.E. 2d 311 (1980). On. appeal, appellant does not argue that the doctrine of last clear chance applies to this case, so we have not addressed that issue. Since the evidence, even when viewed in the light most favorable to appellant, establishes contributory negligence as a matter of law, the trial court did not err in granting Moss’ and Cardwell’s motion for directed verdict.
For the reasons stated, the trial court’s granting of appellee’s motions for directed verdict is affirmed.
Affirmed.
Judge Hill concurs.
Judge BECTON dissents and files written opinion.