Originally Posted by Lono
Why should a restaurant be allowed to make you pay a tip? I tip pretty generously if my server is good but I don't like the "you have to tip this amount". That usually means, my drink stays unfilled and they don't give you near as much service as the guy next door who they have to suck up to so they get a tip.
Because while she is taking care of 20 people in your group, she is not taking care of the other tables she normaly would be. It protects servers from assholes like those in the op.