Opinion by
This suit in trеspass was instituted to recover damages for personal injuries to the plaintiff due to the alleged negligence of the defendants. A jury trial resulted in a verdict in favor of the plaintiff in the amount of |16,549.50. The lower court denied the de *371 fendant’s motion for judgment non obstante veredicto and entered judgment upon the verdict. Defendants appealed.
It is argued that no actionable negligence was proven and that the plaintiff was.guilty of contributory negligence as a matter of law. Both contentions are without merit.
The jury-winner is entitled to the benefit of every fact and inference of fact which may reasonably be deduced from the evidence:
Metro v. Long Trans. Co.,
Immediately prior to the accident, the plaintiff was standing on the loading dock and saw the tractor-trailer back into the areaway and stop at a point where the rear axle of the trailer was approximately 10 feet distant from the dock. He was manager of the plant for seventeen years and frequently helped on the dock in the unloading of supplies. The practice continuously followed by operators of tractor-trailers in making deliveries was not to open the rear doors of the trailers, while still out on the streеt. This was because the *372 cargo would tend to fall out during the process of backing up and the doors, if opened and hooked to the side of the trailer, would obscure the rear view of the driver. Thus the drivers would always back the vehicle into the passageway, stop when the rear of the trailer would be approximately 10 feet from the dock, alight from the cab and proceed to the rear to open the doors. The spacе of 10 feet was required to conveniently accomplish the task of opening the doors since, if the trailer were too close to the dock, such would be impossible.
The tractor-trailer involved was equipped with air brakes regulated by an I.C.C. valve. When this valve was closed, the supply of air to the brakes was shut off and the brakes automatically locked. When this valve was opened, an outrushing of air caused a loud hiss easily audible in the immеdiate area. The plaintiff was fully conversant with this sound.
At the time of the delivery that morning, lying on the ground in front of the loading dock were two pieces of timber. These pieces of timber were used to block up or to shore uр a steel plate which would be placed from the floor of the loading dock to the bed of the tractor-trailer in order to facilitate rolling a cart into the trailer. The tractor-trailer backed into the arеa-way and stopped. The doors of the tractor-trailer were closed. The plaintiff jumped to the ground and stood at the right rear corner of the trailer. He looked into the right-hand rearview mirror and saw Paul P. Slay-makеr, the defendant, sitting in the tractor. The plaintiff yelled “hold it.” He waited approximately 15-20 seconds to make sure the vehicle didn’t move. He then bent to the ground in front of the loading dock and picked up one of the pieсes of timber placing it on top of the loading dock. He glanced at the tractor-trailer again and seeing that the doors were still closed, walked across the back of the trailer, and bent to the ground to pick uр the other piece of timber. While so bent, *373 he was crushed against the side of the loading dock by the rear of the trailer. There was no warning sounded, no horn was blown and there was no sound of escaping air from the air brakes indicating that they had been released, and the doors of the trailer were still closed.
Certainly, under the circumstances, the question of whether or not Slaymaker exercised reasonable prudence was a jury question. The jury could conclude that he, after first stopping, deliberately backed up the vehicle the remaining 10 feet without anyone to direct him, and without looking to ascertain if anyone were in the path, and in the absence of his giving any signal or warning. In
Lacaria v. Hetzel,
However, a more plausible explanation of Slay-maker’s negligence is indicated. As stated above, the vehicle was equipped with air brakes. When the valve is opened, the brakes are released аnd this action is accompanied by an outrushing of air which causes an easily audible hissing sound. Also, when a truck is backing up, there is generally an acceleration of the motor which is loud enough to warn anyone in the near viсinity, that the truck is about to or is moving. The plaintiff testified that he did not hear any acceleration
*374
of the tractor’s motor, nor any release of air brakes, nor a sounding of the horn, which he would have heard if any occurred. Thus the defendant-driver failed to give any warning and the plaintiff failed to receive any warning that the truck was drifting toward him. It is a reasonable conclusion from this testimony that the I.C.C. valve was not properly set or regulated by the driver оf the truck, and this caused the truck to drift backwards on the incline without any forewarning of its movement. That this is what happened is strongly evidenced by the fact that the doors of the trailer remained unopened as it backed right up against the dock. The facts in
Gyarmati v. Linde Air Products Co.,
Nor do the circumstances warrant the conclusion that the plaintiff was guilty of contributory negligenсe as a matter of law. To do this “requires evidence of contributory negligence which is so clear and palpable that there is no room for fair and sensible men to differ in their conclusions”:
Elbell v. Smith,
Should the plaintiff be required to anticipate the negligence of the defendant-driver in failing to properly adjust the brakes? Was the plaintiff required to anticipate that because of this negligence, of which he was not aware, that the trailer wоuld suddenly roll back up against the dock without any warning being given and with its rear doors still closed? To us, the answers are self-evident.
In
Wagner v. Phila. Rapid T. Co.,
In
Rader v.
Williamson,
Finally, how was the plaintiff to know that the defendant-driver didn’t properly set the brakes on his trailer? He couldn’t tell by just looking at the rear of the trailer. Hindsight isn’t the test of negligence or contributory negligence. “
‘What would have been wise, simply in view of what is learned after an occurrence lihe this, is no criterion of care.
Failure to do some particular thing which might have prevented an accident, and which is brought to the attention of the party charged with сarelessness for the
first time
only after the accident has happened, is not the test of negligence; the standard of proper care is the observance of prudence as the average prudent man obsеrves it, by following the ordinary usage of his business’ ”:
Fuller v. Pennsylvania R. R. Co.,
Judgment affirmed.
Notes
Emphasis supplied.
