Paying The Idiot Tax

I recommend a glass of sauvignon blanc to a customer, and he doesn’t like it. I replace it with our other option, which is more expensive, but I don’t change the price as I recommended the one he didn’t like.

I bring him his bill at the end of the meal.

Customer: *Infuriated* “I spend good money here, and I won’t be paying for something I didn’t drink!” 

He tossed the checkbook at me like a Frisbee. I calmly took the book back, adjusted the price, and gave it back to him.

The way his eyes got huge and his jaw opened when he realized his mistake has stuck with me to this day.