Guy passes out after friend pulls a chainsaw prank

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It always seems funny at the time, but when the prank goes south and someone is either hurt or it all just falls apart at the seams, you find yourself running around like a lunatic trying to make things right.

So before you pull a prank, make sure you've crossed your Ts and dotted your Is.

These two mates were recently caught on video. One of them was working on a car, and the other using a chainsaw. Everything seemed normal, but then a few seconds in, all hell broke loose.

This prank just goes completely wrong and I think that no matter how much this guy apologises to his mate, he's just not going to accept it.

Also read: British magician pulls off epic snake prank

If you were the friend who fainted, how would you feel if your mate pulled this prank on you?