Two cases were brought and tried in the circuit court of Plamilton county, against L. S. Whitaker and his wife, Thula Whitaker, resulting in verdicts in favor of Mrs. Mattie Bandy in one case in the sum of $4,000, and in favor of F. A. Bandy in the other case in the sum of $500. The causes of action arose out of an injury to Mrs. Bandy and damage to the car of Mr. Bandy occasioned by an automobile accident occurring on the 16th day of November, 1924.

*203 On that date the plaintiffs below were driving a Ford roadster, near the intersection of Georgia Avenne and Fourth street in the City of Chattanooga, when a Dodge touring ear belonging to the defendants below ran away, descending a hill, and collided with the Ford roadster, driving it against the curb, seriously injuring Mrs. Bandy and damaging the roadster.

The Dodge car, owned by Mrs. Whitaker, was seen by the witnesses to run wild down the hill and cross the intersection of the street where the accident occurred. The witnesses saw the collision, but no witness saw or knows anything about the starting of the Dodge car. There was no one in the Dodge car, which had been parked by the son of the Whitakers in front of the house, when he had gone into the house for a short time, and upon his return he states that the car had run away. The testimony introduced by the defendants was a statement of the son that he had parked the car in its accustomed place, by turning the wheels to the curb, cutting off the engine, removing the switchkey and putting down the brakes.

The jury found in favor of the plaintiffs. A motion for a new trial was overruled, and the Whitakers have appealed, assigning as error that there was no evidence to support the verdict, and that the court below erred in failing to sustain their motions for a directed verdict at the conclusion of the hearing of all the evidence.

The fact that the Whitaker ear ran wild upon the street, unattended, and collided with the Bandy car, raises the presumption of negligence. Gorsuch, Adm’r v. Swan, 109 Tenn., 36, 69 S. W., 1113. But this presumption of negligence may be rebutted by defendants, and it is earnestly insisted that the testimony in this cause, standing uncontested and unimpeaehed, conclusively rebuts the presumption of negligence, and that the court should have directed the jury accordingly.

It is insisted that the court and jury may not disregard the testimony of a witness who' is unimpeached, and is uncontradicted, when the testimony is reasonable. Frank v. Wright, 140 Tenn., 535, 205 S. W., 434. We recognize this rule as applicable to this case, and, treating the testimony of the young man as true, then the question arises, is it sufficient to overcome the presumption of negligence? In other words, does it explain the accident in a way to show an absence of negligence to the satisfaction of reasonable men 1 The testimony relied upon is as follows :

“Judge Bachman: ‘If it please the Court, it is agreed between the counsel, that if the boy who had previously driven this car, Whitaker, was here, he would testify that on the *204 afternoon in question be drove up to bis bouse between two and three o’clock, and parked bis car in tbe accustomed place, where be was used to parking it, that be turned tbe wheels to tbe curb, cut off the engine, took out the switch, put on tbe brakes, that be went into tbe house and, coming out shortly thereafterwards, tbe accident bad occurred down at tbe corner of Fourth and Georgia Avenue; that be knew nothing whatsoever about tbe starting of tbe car or tbe removal of it from tbe place where he parked it; that, I take it, is tbe substance of tbe agreement.’ ”

“Tbe Court: ‘It is admitted that that would be tbe testimony if he were present.’ ”

“Mr. Rankin: ‘Yes, and further, that they would make no question about tbe fact that be was tbe son of tbe defendants and using tbe car to go to school in.’ ”

Tbe young man was not present at tbe trial. Having waited two days, be bad to leave and return to the University at Sewanee, where be was a student, to stand bis term examinations. This was considered a sufficient excuse for bis absence, and tbe parties went to trial upon the above agreement. This was all tbe evidence introduced by the defendants.

Tbe plaintiff, Mr. Bandy, stated that the Whitaker boy told him, during a conversation with him at tbe place and time of the accident, tbe following:

“I parked tbe car in front of my home, and ran in the bouse a little bit, and it ran away.”

There is no proof of any parties being on tbe street or near tbe car at tbe time tbe Whitaker boy went into tbe bouse, nor when be came back. Tbe car was shown to have been parked on a hillside, and the only explanation given to show an absence of negligence on tbe part of tbe driver was, that be turned the wheels to tbe curb, turned off tbe engine, took out tbe switch and put on tbe brakes. It is insisted that be could have done all this, and tbe jury could have reasonably and logically concluded tbe car did run at large, in tbe absence of any intervening cause. It is argued that defendants did not show the condition of the brakes, and tbe brakes, being deficient, as is often tbe case with automobile brakes, then tbe force of gravity would cause tbe car to start, tbe wheel to slide upon tbe curb and tbe car to run at large. If this is true, then tbe boy’s explanation would not remove the presumption of negligence. Then it became a question for tbe jury to determine, and these facts being susceptible of the inferences insisted upon, it was the duty of tbe court to submit the question to the jury.

*205 It is apparent that bad tbe car been parked on level ground tbe statement of tbe boy would have been a sufficient explanation to establish tbe lack of negligence on bis part in tbe mind of all reasonable men, and tbe necessary inference must be, in that case, that the car was started by an intervening cause, for which tbe defendants are not shown to be responsible. But since the car was parked on a hillside, tbe explanation does not satisfy reasonable men, and therefore it became a question for tbe jury to say whether the explanation was sufficient to overcome the presumption.

It is the duty of defendants to make a reasonable and satisfactory explanation, and in the absence of such explanation the presumption prevails.

“ ‘From this fact the conclusion is fairly deducible . . . that if a horse, or • a team of horses, while unattended on the streets or highway, does damage, it constitutes . . . prima-facie evidence of negligence to charge the owner, driver or custodian, in the absence of an explanation on his part satisfactory to the jury. ’

“In support of this text he cites a number of eases, among which are, Meyer v. Railway Co., 51 N. Y., 497, and Strup v. Edens, 22 Wis., 432. Both cases involved the question of the owner’s liability for injuries inflicted by runaway teams. In the first, the Supreme Court of New York said: ‘The fact that the horses were unattended and unfastened in the street was, unexplained, evidence of negligence against the defendant.’ And in the second, the rule is stated in these words: ‘The fact that the horses got loose and ran away is some evidence of negligence. It is true such a thing might occur notwithstanding due care in hitching, but such would not be the ordinary result, and, unexplained, the reasonable inference from the first would be that there had been negligence in fastening the horses.” Gorsuch, Adm’r v. Swan, supra.

The requirement of a satisfactory explanation is borne out by the authorities dealing with automobile accidents of this character. O’Berg v. O’Berg, 90 Wash., 435; Oppenheimer v. Am. Ry. Ex. Co., 181 N. Y. Sup., 195; Albano v. Tapley, 234 N. Y., 523.

Taking the statements of the Whitaker boy as true, in "view of the absence of evidence as to the condition of the brakes and steering wheel, then the fact that the car ran wild, it being parked on a hillside, it cannot be said, in the ordinary course of things, this could not have happened. Then it was a question for the jury, and the court committed no- error in submitting it. The parties confined their appeal to this single question, and the disposition of it disposes of the appeal.

The judgment of the lower court is affirmed, at the cost of plaintiffs in error and their bondsmen.