It seems to me that the customer is trying to get my attention, so if I worked there I would give the customer service. I would ask if I could be of service.
Serve him And Insult in double meaning...that depend on you how you handle that kind type of customers.... in front of his g.f :) Try and nothing special that you can do bcoz thats job ..:(
I agree with Jackie T. Responding in a angry or rude manner, or even ignoring the jerk will only result in you getting in trouble.
It's rude but I would be polite because its my job
Waiters should be respected. Personally I would punch him in the face.