My exact thoughts! Why should I pay more than I am already paying for a meal, to one person? When multiple people helped create my meal behind the scenes. It is not my job to create a fair wage for servers, it is the establishments!
Never leave until after the credits. ALL of them. For Thor: the Dark World, not only did people walk out right when the credits started, they walked out after the first clip. There were still more credits after and before the final clip. C'mon people!!