Some great replies as usual, What I was really on about was the session players who play together every week, it's as if the musicians have got to a very high standard of playing and then the guitar player strikes up with a little 4 liner folk song, 'To Hell With This, This Song Is Too Easy For Me attitude from the lead players. thank f,,, that's over , then back to the real music he says to himself.
Everybody needs to be accommodated at sessions, a good mixture of all, never show signs of boordom, even if you are.