I saw this posted recently. A band member actually unplugged his bass and walked off stage because he didnt want to play a song because he didnt like it?
It may be because I,m getting on a bit, but if we are getting paid to do a gig, then the least we can do is to remain on the stage.
If people want Mustang Sally and Brown Eyed Girl etc, then its our job to give them what they want.
Rant over, As you were.