I've had many compliments on being a good waitress, so I think I would know. Chances are, this server is a teenager and nobody has ever taught her about the job. It's hard work, that's for sure. If people would tip better, that's another thing. Waitresses at local diners don't make out for beans.
People think a quarter for a cup of coffee or one dollar for two lunches is a big tip.
We have families to support and bills to pay just like everybody else. But anyway, complaints should be made to the manager,either by phone or in person. I personally do not like. I am surprised that an astute business man such as Mr. Daley would condone such behaviour in one of his employees. But then maybe he is not aware of her behaviour in and out of the office.