It happens to almost everyone at least once: the waiter sets down your plate, says "enjoy your meal," and your mouth says "you too!" before your brain catches up — even though they're clearly not about to sit down and eat with you. It's become a whole genre of relatable, cringe-compilation content online, with people replaying the moment in their head for days afterward. But is it actually a big deal, or is "you too" just a harmless social autopilot response, the verbal equivalent of waving back at someone who was waving at the person behind you?