"When I was in college I worked at a popular chain of Canadian loose-leaf stores that always tried to push overpriced loose-leaf tea and tea-making paraphernalia to customers. This being a store in a high-end mall in a ritzy area, a large demographic of our customers were irritable rich people who weren't particularly used to doing things themselves, so more often than not we operated more like a Starbucks for tea.
"I had mostly evening classes at this point, so I had a lot of morning and early-afternoon shifts, which meant I served a lot of middle-aged cougars with rich husbands who had personal side-businesses selling soy candles or whatever and had the time to go shopping at luxury boutiques at 11am on a Tuesday.
"One such creature strolled in one day. Before I had time to launch into my standard friendly greetings she demanded a 'grape iced tea.' We didn't have a grape tea. I apologized, told her this, and offered to find her something else she may like or might taste similar to a grape juice-y flavor. She rolled her eyes, sighed, and said, 'Fine, but I was here recently and one of the other girls served me a grape tea. I'm a frequent customer here, and I know what I was served.' I'd worked there for almost a year at that point and was 1,000% sure we didn't have a tea with grapes in it, so I asked her if she could possibly recall the name of the tea, or if she wanted to have a look through our tea menu to see if anything rang a bell. She snapped back, condescendingly, 'I'm sorry, I was under the impression that was YOUR job?’