For everybody but him.
It's always fun to prank a friend somehow. The question is though, how far should you go? Should it be a prank that makes that friend believe they're going to die or be seriously injured, or something less scary, like sitting on a whoopee cushion? Nah, the former is way better and world's funnier (at least for you). But is purposely scaring the shit out of a friend moral? Probably not, but this guy went ahead and did it anyway. The setup was really quite simple: Drive along in a car while the friend is fast asleep in the front seat.
Then, out of the blue, start shouting that the brakes don't work and that you can't stop the car. But hey, if you happen to be one of those who doesn't find this funny as hell, at least the video ahead will give you a chance to work on your Polish.