Bully gets his head knocked off

I don't think that was the kind of reaction he wanted to get from the crowd. Not everything always works out as planned!

This Russian guy gets knocked out in one punch after bullying around a schoolmate. He didn't even see it coming!

Don't mess with a dude who knows karate!

Referee Tony De Las Heras gets knocked out by a players knee during a rugby union match in England.

Instead of backing down, this new kid stands up to the school bully and makes him pay the price. That's karma for ya!

An underground fighter gets knocked out cold after showing off for the crowd. Serves him right!

This bully pays the price for waking up a napping classmate. He didn't even know what hit him.

British-Pakistani boxer Usman Ahmed Uzzy may have some good dance moves, but you definitely cannot say that same about his boxing skills.