Working in Customer Service

Ion know about y'all, but working in customer service (especially in a small town in the south) is one of the worst things EVER. But it's not even the rude people that frustrate me the most. Yeah it's annoying, but what REALLY gets me is the people who act like they have never had an interaction with another human being ever. I went to hand this lady her receipt and she SLAPPED MY HAND AWAY because she didn't want it. LIKE GURL JUST TELL ME??????? IN WHAT WORLD IS IT APPROPRIATE TO DO THAT. Anyways my shift starts in and hour prayers please </3