Puzzled by the way credit card payments are done in the US
I’m visiting from Europe and it’s quite puzzling to see the way payments are done. You swipe the card and then a piece of paper is returned to you where you write down the tip you’d like to add, so final payment is done once you leave.
I find this very error prone and quite unsettling, so my question is: what happens if you were to find that instead of 10$, 100$ were charged? Doesn’t this happen all the time?