I saw a band that fit that description in a small venue a few years ago
As the bass rumbled through my bowels I shouted to a mate 'I'm glad I shat before I came' - just as the music had stopped of course.
I think the band took it as a compliment. It wasn't.
(
Wasp Box like a nervous random stranger at a glory hole,
Wed 7 Jan 2009, 12:40,
archived)