If you’re at a restaurant and looking for a quick exit, tell the server it’s your birthday and they’ll bring out a free dessert and usually a song and everybody will sing so you have a good window to get out

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Edit: Wow this blew up, just a few pointers, I’ve only done this twice and only at casual diners like a Friday’s, Chili’s or applebee’s. If you do it at a nicer restaurant always be prepared to pay the bill and leave a tip and don’t abuse this. It’s just a funny prank