Some guys who backed him up at First Avenue in Minneapolis in the early 80s said that he rolled up to the club in a Cadillac, all alone, about 10 minutes before they were supposed to go on, never rehearsed or asked the band if they knew one song or another (in fact he never spoke a word to them except to scream curses at them on stage for making mistakes) played the gig, got paid in cash, put the money in his briefcase (which, along with his guitar case, was handcuffed to a pipe on the wall backstage while he played), packed up his guitar and got back in to the Cadillac and split.
I always though that was one of the funniest - maybe coolest - stories I ever heard about a touring musician.