Once I was at a party playing bongos, and I got going pretty well. One of the guys was particularly inspired by the drumming. He went into the bathroom, took off his shirt, smeared shaving cream in funny designs all over his chest, and came out dancing wildly, with cherries hanging from his ears. Naturally, this crazy nut and I became good friends right away.
"But Is It Art?" from "Surely You're Joking, Mr. Feynman!": Adventures of a Curious Character, Richard P. Feynman.
Watch Feynman in action (science action not bongo action) here.