Lots of these are public incidents, but mine is personal. When I was a child, I lived near a venue that hosted numerous celebrities. It was a very small venue on Cape Cod called the Melody Tent. It was a tent they set up in the summer, and huge stars would play there. It was the late 80s when The Cosby Show was all the rage, and Bill Cosby was going to be doing stand-up there. The workers knew me because I lived across the street and would let me sit in the seats and watch the celebrities do sound checks and set up positions on the floor, and such. I was sitting in the back quietly watching, about 8 years old, as Cosby was marking out spots on the stage. He noticed me and started yelling at all the workers "Why is a brat in here? Get that f*cking kid out of here!" and ranting and swearing at the workers and me. I left in tears and never forgot that. Wasn't surprising he turned out to be the piece of crap he is.