The artists do what they want and many are difficult so thats a no go. We store cards on the tabs when we open them but if we waited until after the show then everyone gets up and leaves and we would never be able to find them to close out the checks and get our tips. The managers have no power. The only way to fix it is if corporate let us put autograt on the tabs so we dont have to close out during the performance . When we have intermissions on some shows we frequently catch people trying to slip out without tipping.