At what point as a service provider do you or should you stop being nice to a customer who is arrogant, obnoxious, Totally in the wrong about thier situation, not telling the truth, over the top rude to my employees and myself and flat out being an a-

I'm pretty easy to deal with and will do all thats within my power to help somebody out. But this was ridiculous. I had to do everything I could to not beat the snot out of this guy.