Once while hosting an Open Mike night an ill-advised "bass duo" happened (I can hear the "Oh $h*t" already). One of the bassists was fairly well restrained, knew his chops & was trying to create a little "air" for the other guy who, with a couple of bottles of Grolsch in him, decided that he had to play little snatches of every rock song he knew and then for no good reason tried to channel the spirit of Jaco Pastorius. Fast, loud & formless. The other guy put his instrument down and walked away. He ignored the subtle "lighter" ("you have 1 minute") signal, the hand across the throat motion (cut it out) and I finally had to approach him waving my arms like I was trying to clear livestock off of an airport runway.
Some get it, some don't.