RUDE.

I would just like to say, I don't care how rich or important or entitled you feel.  Please don't be rude to your food service professionals.  We work hard to serve you with a smile on our faces (even when we don't feel like smiling) and we are usually more tired than you are.  Treating us like we are untouchable dirt on your shoe miles below you on the social chain will not get you anything.  And if you do feel that you need to treat us that way to be happy in your life, then you are a waste of space.