They tap you on the shoulder to say hi and your reflexes means you punch them in the face.

Telling someone they looked like 13 when they're actually 18. I'm 20... So that's really awks for both of us! LOL
This just happend on Skype LOL
Great way to greet someone I think without judging them first lol
Coming from behind and thrusting upon them
go for a hi 5/fist bump then realise they have no arms
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