Working retail is the biggest soul sucking job known to man. Nobody grows up aspiring to be a cashier working the register, forced to endure customers's stupid jokes ("if it doesn't scan it's free, right?"), listening to mild pop music on loop, and surviving inadequately balanced AC. However maddening the endless onslaught of beeping barcodes, inventory nights, matching aprons, and dealing with incoming merchandise, the worst thing by far about working in retail are the Karens.

Dealing with a demanding customer can be a nightmare—ask anyone in customer service. It's not as straightforward as you might think either—the more you bend and break for them, giving in to their demands, the more they will ask for in return. It's like a lion attacking a herd of wildebeest; the hunter can sense the weakness, and showing any will make you a greater target. Plus, if you actually manage to close a sale with these people, there is an infinitely greater chance that they will become…

When you deal with customers, no matter how big or small your operation is, there's the inevitable risk that, at some point, you'll stray across an unreasonable one. It's incredibly likely that your experience with this someone with culminate with them blaming you for problems and unhappiness of their own making while gesturing wildly in a manner reminiscent of a wacky waving inflatable arm-flailing tube man—just to be sure they've gotten their point across. If the experience doesn't end in an…