Appellant Sharon Bell challenges a jury verdict in favor of appellee James Misenheimer brought by Ms. Bell for damages from a car accident. She asserts that there was no evidence to support the circuit court’s instmction to the jury on comparative fault and that she is entitled to a new trial. Her argument has merit; accordingly, we reverse and remand for a new trial.
On December 12, 2005, Ms. Bell was driving down Powell Street in Taylor, Arkansas, with the purpose of attending her aunt’s funeral. Mr. Misenheimer was attending the same funeral. Both *390drivers were seeking places to park their vehicles when the accident occurred. Mr. Misenheimer testified that he had pulled into a driveway with the intention of backing out and going to a parking space that he had seen. He stated that he did not see Ms. Bell because her car was lower than the cars parked beside the highway, which blocked his vision of her car. He explained that he was easing very slowly back into the highway when the impact occurred. He confirmed that the impact was “pretty hard,” but that the only damage to his truck was the left rear corner of his bumper. Ms. Bell’s car suffered considerably more damage, including a broken axle.
In asserting that the comparative-fault instruction was proper, Mr. Misenheimer relies upon his testimony that Ms. Bell exited her vehicle after the accident and said that “she was looking to the left to find a parking place in front of the church and didn’t see [Mr. Misenheimer’s vehicle].” At trial, Ms. Bell disputed the assertion that she was looking to the left when the accident occurred. In her testimony, she also stated that she did not see Mr. Misenheimer because of the cars that were parked along the road that obscured her vision of him. Mr. Misenheimer relies upon Ms. Bell’s testimony that she “never saw Mr. Misenheimer,” and her statement that “I wasn’t looking directly beside me,” to support his argument that Ms. Bell failed to maintain a proper look out while Mr. Misenheimer was doing everything that a reasonably careful person would do under the circumstances. He further asserts that Ms. Bell admitted fault at the scene.
Instructions should be based on the evidence in the case, and instructions submitting matters on which there is no evidence or stating only abstract legal propositions should not be given. Davis v. Davis, 313 Ark. 549, 856 S.W.2d 284 (1993). On the other hand, it is error to exclude a requested instruction if there is evidence which supports its utilization. Parker v. Holder, 315 Ark. 307, 314, 867 S.W.2d 436, 439 (1993). For an instruction on comparative fault to be warranted, it is necessary for there to be evidence that the plaintiffs actions were aproximare cause of her damages. Skinner v. R.J. Griffin & Co., 313 Ark. 430, 433, 855 S.W.2d 913, 915 (1993). When reasonable minds can only conclude that there was no evidence of proximate cause, the instruction is improper. Id. In cases where it is nearly impossible to prove prejudice, the giving of the improper instruction is sufficient to require a new trial. Id. at 435, 855 S.W.2d at 916.
*391Furthermore, the issue of duty is always one for the trial court and not the jury. Bader v. Lawson, 320 Ark. 561, 898 S.W.2d 40 (1995); Little Rock & Ft. S. Ry. Co. v. Henson, 39 Ark. 413 (1882) (holding that in every civil case, where negligence is the issue, it is the duty of the court, when the evidence is all in, to sift it and determine as a matter of law whether it involves negligence or not). If the court finds that no duty of care is owed, the negligence count is decided as a matter of law, and summary judgment or a directed verdict is appropriate. D.B. Griffin Warehouse, Inc. v. Sanders, 336 Ark. 456, 463-64, 986 S.W.2d 836, 840 (1999); Dunn v. Westbrook, 334 Ark. 83, 971 S.W.2d 252 (1998); Smith v. Hansen, 323 Ark. 188, 196, 914 S.W.2d 285, 289 (1996); see also First Commercial Trust Co. v. Lorcin Eng’g, Inc., 321 Ark. 210, 213, 900 S.W.2d 202, 203 (1995); Lawhon Farm Supply, Inc. v. Hayes, 316 Ark. 69, 71, 870 S.W.2d 729, 730 (1994); Keck v. Am. Employment Agency, Inc., 279 Ark. 294, 652 S.W.2d 2 (1983).
To affirm this case would require us to find that, as a matter of law, Ms. Bell had a duty to anticipate that Mr. Misenheimer would fail to yield the right-of-way. A motorist traveling in the highway has no duty to assume that one entering the highway will fail to yield. Arkansas law requires the driver of a vehicle about to enter or cross a highway from a private road or driveway to yield the right-of-way to all vehicles approaching on the highway. Ark. Code Ann. § 27-51-603 (Repl. 1994). In describing this duty to yield placed upon the driver in the context of an approach to an intersection, our supreme court explained:
We have held that the statutory obligation to yield the right of way at a stop intersection, imposed upon the unfavored driver, is not discharged by a mere stop but extends to the entire passage across the favored highway, and that the favored driver using a through highway is not required to slow down at an intersection or bring his vehicle under such control as to be able to stop, upon the assumption that an unfavored driver will fail in his duty.
Shroeder v. Johnson, 234 Ark. 443, 447, 352 S.W.2d 570, 572 (1926) (quoting with approval Ness v. Males, 93 A.2d 541, 543 (Md. 1953)). Similarly, the driver to whom the one attempting to gain access from a driveway must yield, has no obligation to assume that the driver seeking access will not yield.
Under our comparative-fault statute, Ark. Code Ann. § 16-64-122 (Supp. 2003), the fault of a plaintiff in a personal-injury case is compared to the defendant’s fault. If the plaintiff s fault is *392less than the defendant’s, the plaintiff may recover damages from the defendant after the damages have been diminished in proportion to the plaintiff s own fault. If the plaintiffs fault is greater than or equal to the defendant’s, then the plaintiff is not entitled to recover damages. The “fault” to be compared under the statute must be a proximate cause of the plaintiffs damages. See generally Ouachita Wilderness Inst. v. Mergen, 329 Ark. 405, 947 S.W.2d 780 (1997); Skinner v. R.J. Griffin & Co., 313 Ark. 430, 855 S.W.2d 913 (1993); Kubik v. Igleheart, 280 Ark. 310, 657 S.W.2d 545 (1983). Because comparative fault is an affirmative defense, the burden is on the defendant to prove that the plaintiff was at fault. See Rodgers v. CWR Constr., Inc., 343 Ark. 126, 33 S.W.3d 506 (2000); Young v. Johnson, 311 Ark. 551, 845 S.W.2d 510 (1993).
In arguing this case, Mr. Misenheimer relies on his testimony that Ms. Bell admitted fault at the scene immediately after the accident, an allegation that Ms. Bell denied at trial. The credibility issue regarding an admission of fault is irrelevant to the analysis because Ms. Bell had no duty to Mr. Misenheimer. Many years ago our supreme court explained the irrelevance of a party’s admission of fault:
Appellant next contends that the court below should have admitted the testimony of Jesse Smith. The appellant’s attorney asked Smith this question: “Jesse, who was at fault?” and it is argued that Smith would have answered that he was willing to say that he was at fault. This question was not proper, and the court did not err in excluding it.
While the evidence shows that Smith, as well as the driver of the other track, was at fault, yet this was the very question to be determined by the jury, and not by the witness. Witnesses testify as to facts, and whether any one is negligent, or in the exercise of care, is a question for the jury. The witness testifies as to facts, and the jury draws the conclusion.
Dermott Grocery & Comm’n Co. of Eudora v. Meyer, 193 Ark. 591, 595-96, 101 S.W.2d 443, 445-46 (1937). See generally C.J.S. Evidence § 514 (holding that a witness cannot be permitted to state his inference as to the assumption of risk, or as to the existence of contributory negligence, even though the witness is the actor himself (footnotes omitted)). Accordingly, Mr. Misenheimer’s reliance on his testimony is irrelevant to the determination of whether Ms. Bell had a duty that she failed to perform and that her failure was the proximate cause of her damages.
*393Because Ms. Bell had no duty to anticipate Mr. Misenheimer’s failure to yield, the trial court erred in giving the comparative-fault instruction. There is no substantial evidence that appellant failed to do something that a reasonably careful person would do or did something that a reasonably careful person would not do under the circumstances, which is the definition of negligence. See Marx v. Huron Little Rock, 88 Ark. App. 284, 291, 198 S.W.3d 127, 132 (2004); Ethyl Corp. v. Johnson, 345 Ark. 476, 49 S.W.3d 644 (2001). We cannot say that the court’s inclusion of a negligence comparison to the jury did not have a prejudicial impact on the outcome of the case. Cf. Little Rock Elec. Contrs., Inc. v. Okonite Co., 294 Ark. 399, 744 S.W.2d 381 (1988). With a general verdict returned by the jury, we cannot determine that the error in giving a comparative fault instruction was harmless. Young v. Johnson, 311 Ark. 551, 557-58, 845 S.W.2d 510, 514 (1993).
Accordingly, we reverse and remand for a new trial.
Bird, Glover, and Heffley, JJ., agree.
Gladwin and Griffen, JJ., dissent.