First rule of professional fighting should be:

If the ref for your fight has anger management issues, stop when he tells you to stop.

These two guys start their karate match (don't get technical with me if it's Tae Kwon Do or some s***), and when the ref tried to stop the fight, they don't listen to him.  This triggers his slight anger management issues, and he begins to beat seven kinds of f*** out of them, and the other refs who come to stop him.

Nice kick, bro.