A surveillance camera captured the whole thing. The waiter had just dropped off the check, when one of the customers threw a margarita at his face.
Then, things get even more violent. The customers gang up on the waiter, even hurling chairs at him.
Police say the customers had been trouble from the start. Objecting when they were asked for ID's before delivering a pitcher of margaritas.
The waiter was not seriously hurt. Police are working to identify the suspects in the surveillance video.