No, it wasn't like he was a big jerk... he was just in Minneapolis in a basement with a bunch of 20 year olds who apparently didn't realize his legendary status. He just bided the time until he was on stage, like I'm sure he did most nights of the year. Minneapolis is not really a hotbed of blues.

Actually, most blues musicians I've met have been on the introverted/surly side.

Jazz musicians were generally friendly, and really smart about a lot of different things and great conversationalists. I never could understand jazz, but I always liked jazz musicians.

Classical run the gamut... viola players the friendliest because they had absolutely NO ego! (I played the viola...).

Punk musicians were almost consistently friendly.

Rock... oblivious to the world and self-absorbed.

Just my opinions....from my limited exposure.