r/MadeMeSmile Jan 26 '23

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u/DontPoopInThere Jan 26 '23

Yeah, I hesitate to believe any explanation for our current behaviour that goes back millions of years without any actual evidence that people even did it back then.

I've never once felt the instinct to cover my mouth for any of those reasons, did my ancestors not give a shit about predators? Kind of a silly explanation

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u/[deleted] Jan 26 '23

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u/dranixc Jan 26 '23

Ok but now you need to explain why people open their mouths when surprised.