The customer is always right, the saying goes, but that doesn't mean they always have the
best intentions. People in the restaurant industry, for example, have to deal with customers who send back their food, and that, sometimes, these demands make no sense, be it a customer doing it just to be a dick, because Mercury was in retrograde, or because brain weevils had said the meal was poisoned. But there are a few legitimate reasons to send back your food, times when you can feel justified in saying, "Uh, nah, try again." Here are eight big reasons, ranked in reverse order of how egregious. https://www.thrillist.com/eat/nation/send-food-back-at-restaurants-reasons-ranked/food-and-drink