Jerry makes good points as does guest Ballyholme. I should point out that I did say I spend some time at the back of the room before going on once I've attended to all the other needs! One point I would make is that as soon as one gig is finished I feel the pro is then obligated to the next gig and audience, and must do whatever is right to be able to turn up on top form for them.Partying the night before and giving another concert is not good preparation, particularly when in ones late 50's!
I think this thread has been very useful in making the point that an artist can be judged on criteria he/she has no idea are being applied.