Had to laugh at the "Moving tables" comment. Other than in the odd "Big Name" lodges and hotels where the floor managers won't allow it, I always insist on taking care of those things by myself and would never dream of leaving without putting things back to the way they were.
Hospitality workers have a tough enough job and when I'm playing those venues I tend to consider myself as one of them.
Mind you, I never drink or eat before or during a gig but have lost count of the number of times some poor barman has found himself sharing a couple of pints with me 'til four in the morning.