i've seen a chick belt a dj, but i believe they had some sort of history... it was early in the night, and the way it happened seemed like she knew he was going to be djing at that venue at that particular time and it was a targeted attack. I think everyone has seen fights in clubs, but they seem to be fairly rare in the venues that i've been to in recent years. I had some guy take exception to me one time in a club (not sure why, i wasn't even drinking that night), and he punched me in the mouth and ran away.... one of the biggest WTF moments in my life. Who does that?