delivered the opinion of the Court.
A passenger on a bus, thrown and injured by its sudden stop, sued its owner for damages. At the conclusion of the plaintiff’s case, the court directed a verdict for the defendant and the appeal is from the judgment that followed.
Mrs. Perry Jones, the plaintiff below and appellant here, left her place of employment and boarded a bus that ran north on St. Paul Street, intending to get off at Preston Street. She was standing between the fare box and the front door, facing front, as the bus approached Preston Street. She was asked exactly what took place and her answer was: “Well, the speed was very fast. It was a little too fast to be going there. On the corner, you know, where the passengers is supposed to get off, a car pulled in front of it, and he was going so fast that he had to throw on the brakes and avoid a more serious accident * * She then testified that she fell across the fare box and that two other ladies waiting to get off, also fell, one of them across her. She then testified further as follows: “Well, it wasn’t quite ready to stop then but, you see, he was going so fast he, you know, when this car pulled in front of him and he had to throw on the brakes real — real—fast, you know, real quick, and that’s when we all went down, and then he stopped.” After she gave this testimony, the witness was withdrawn and the doctor testified as to the injuries. Appellant’s counsel next called to the stand Mrs. Ethel Kelly, one of the passengers who fell at the same time as appellant. She testified that as the bus was going north on St. Paul Street after leaving Biddle Street, she got up to get off at Preston Street, the next stop, and that she was “standing at the front door like that (indicating) holding to the rail waiting to get off at Preston Street, and the bus was going very, very fast, and I could see up half-way of the block that there was a car standing there on the right-hand side of St. Paul Street in the bus stop, and the bus did not stop — or, did not slow down *426 its speed. It was going very, very fast, and it just stopped suddenly, and threw us over, and we were screaming and yelling.” The testimony of appellant and Mrs. Kelly, quoted above, was all the testimony as to liability.
Appellant contends that the court erred in directing a verdict. She argues that her own evidence, that showed that the accident was caused by the negligence of the automobile which cut in front of the bus, may be disregarded and that the jury was entitled to find that the driver of the bus was negligent from the testimony as to the fast speed of the bus and its sudden stop — a- stop so sudden as to cause three passengers to be thrown to the floor. We think the contentions are untenable.
The plaintiff in a suit based on negligence bears the burden of showing that it was the negligence of the defendant without disclosing the intervention of any independent factor that caused the harm complained of. In this context, an intervening cause means not a concurrent and contributing cause but a superseding cause, which itself is the natural and logical cause of the harm. Even if the plaintiff shows that the defendant was negligent, it is not enough; it must be shown that this negligence was the direct and proximate cause of the injury.
Restatement, Torts,
Secs. 440, 441, 447;
Parsons v. C. & P. Telephone Co.,
These general principles have been applied by this Court in cases analogous to the case before us. In
Klan v. Security Motors,
In
Tittlebaum v. Penna. R. Co,,
Appellant’s effort to avoid the result dictated by the authorities cited above by segregating and relying only on the testimony as to the speed of the bus, coupled with that as to the sudden and violent stop, must fail. The concept of speed is a relative one. Negligence may not be inferred from general adjectival descriptions alone. In
Sonnenburg v. Monumental Tours,
If we assume, without deciding, that the testimony as to the speed of the bus was evidence of negligence, we think that the appellant is not helped. Appellant’s own testimony shows that the sudden stop of the bus was required by a car suddenly cutting in front of the bus. There was, of course, no contradiction of this evidence. The testimony of Mrs. Kelly did not affect, modify or qualify it in any way. Mrs. Kelly was silent as to whether or not a car had cut in front of the bus. Her testimony was merely that the bus suddenly stopped at or near a car she had observed parked in the bus stop when half a block away. There was no inconsistency between the two versions of the witnesses and no contradiction by either of the other. The cause of the accident clearly was the unexpected and unforeseeable action of the automobile that violated the rules of the road by invading the lane of the bus. In the face of this invasion the bus would have been required to make a sudden stop at any normal speed, and we think it can be only speculation that the greater speed of the bus, assuming that there was such speed, intensified the results and the injury that followed the sudden stop materially beyond what they would have been if the stop had been from a slower speed. The same observation was made in
Koester Bakery Co. v. Poller, etc.,
It is trite but true and basic to note that where it is manifest to the court upon the plaintiff’s own showing, uncontroverted, that there is “* * * no rational ground upon which a verdict can be based for the plaintiff, it becomes the duty of the court to direct a verdict for the defendant.”
Baltimore Transit Co. v. Young,
Judgment affirmed, with costs.
