i had a customer who didnt speak english and didnt even know money (they at least usually know money) either and he handed me $100 and paid for a tiny little metal cup thingie that was some kind of holder for food. Well it was $40. I guess he gave it ot someone in his car who looked at the receipt and was like "idiot, u paid $40 for this little cup thing?" and sent him right back to get his money back lol
and they were mad when i said its a good idea to at least try to learn workable English in order to function in this country