Dana White talking at UFC Fox 7 scrum about incident last week.
"[Chael's trash talk] exploded with the Anderson Silva fight, when he started ripping him and Brazil. Last weekend, I don't know if any of you guys saw or heard about this, but he was there, shaking hands with everybody and everything, and this guy says, 'Hey Chael! Chael! C'mon over here.' Chael goes over there and the guy starts swinging on him, tried to punch him. [Security] bundled the guy up and dragged him out and he's saying, '**** you! You are a piece of ****! I'm from Brazil' and all this other stuff. The guy attacked him at The Ultimate Fighter (TUF) 17 Finale last Saturday. It was a bad move [for that guy] -- they didn't take him out of there politely. He got bundled and dragged over every stair on the way out [laughs]."
Not too terribly surprised to hear this as Chael was pretty insulting. Fair to say this fan was "gotten to"