I used to work in catering, and there you at least had the advantage of surreptitiously punishing customers who mistreated you. That job taught me the very valuable lesson of never mistreating the people who handle your food.
This reminds me of when I worked for T-Mobile and a woman kept me on the phone for an hour so she could scream at me about two 10 cent text messages that she supposedly didn't make.
Even after I told her I took the 20 cents off, she still had to keep going on about how terrible I was as a person for working for a company that would ruin her day by putting a 20 cent charge on her bill that she didn't incur.
I once worked at a store where a very wealthy lady came in and pulled up her horse trailer next to the entrance, and proceeded to spend about a half an hour walking back and forth from the trailer to the bathroom, filling up a Wendy's Biggie Size cup full of water repeatedly, to give water to her horse. She had no intention of buying anything. I finally told her to leave. She goes "YOU SHOULD BE ASHAMED OF YOURSELF, ABUSING A HORSE LIKE THAT."
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