There's also the one when the person through the bottle at Neal in the Frontiers and Beyond thing.
What did Perry do here? Sounds like he got off the stage and went after the guy. Good for him.
Bands in front of crowds are targets. I remember once when I was about 19, my band was playing some formal dance in BFE somewhere and a guy thought his girl was giving me the eye. He came right up on stage and totally took a swing at me- luckily, he missed. My drummer came right over his drums (on a 3 foot riser) and grabbed the guy. I'm like "What the hell???" That was my first clue- better take singing lessons.
Last week an acquaintance of mine in a local band (a lady actually) had some chick grab her mic stand and hit her across the face with it. She came off the stage and beat the hell outta the chick.
People can suck. Period.