Very interesting advice from servers around the country!  Here is a sample:

 If someone orders a frozen drink that’s annoying to make, I’ll say, “Oh, we’re out. Sorry!” when really I just don’t want to make it. But if you order water instead of another drink, suddenly we do have what you originally wanted because I don’t want to lose your drink on the bill.
—Waitress at a casual Mexican restaurant in Manhattan

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