This is not really a customer rage story but one of my favorite retail experiences from my early 20's. At the time I held a retail job at a famous chocolate shop named after a naked lady on a horse.
I had lost my full time job and was in need of quick employment. Back then I weighed right around 350-375 pounds so a chocolate store seemed like a great place to work.
Corporate had buzz words for all the pieces and how to describe them. The truffle was not coated in chocolate it was 'enrobed in ganache' and things like that.
Well one day a group of middle aged women come in and start fawning over all the chocolate. We had a policy that we could give the customers samples but not to over do it. As I was describing the chocolate and being all sample happy, mostly because I would sample some also, one of the ladies looked me straight in the face and said, "I love the way you describe this chocolate, I bet you are fantastic in bed."
She then licked her lips and popped the chocolate into her mouth. I would love to say that this then turned into an adult movie but sadly awkward newly married fat guy brain kicked into gear and I stammered "uhhhh uhhh I would have to ask my wife, I don't know if I am good in bed."
The woman gave me a weird look, nodded and then left the store with her friends. They didn't end up buying anything.