Mothers of Invention concerts were a lot like that. They prototypically ended with "Louie Louie", getting ever louder, until the sound system failed. Plus much insulting of the audience. On the other hand, insulting was the norm, and mutual, at Butthole Surfers concerts :)
I could say something similar about their music - that it was in a league of it's own. I think because they didn't understand the rules of listenable music, they were free to try whatever they wanted. Unfortunately, it didn't work. They were awful. But it was in spite of what they were doing, not because of it, oddly enough. They really did say "F you!" to the rules and try new stuff. They just weren't very good at it. Also, Mr. Phoenix was incredibly arrogant and rude to the audience at the time, which didn't help. But it was fascinating to watch.