In the UK, I've recently had to swipe a card and sign the receipt as the card reader was misbehaving and that's what it wanted me to do. It's a reasonable backu

In the UK, I've recently had to swipe a card and sign the receipt as the card reader was misbehaving and that's what it wanted me to do. It's a reasonable backup. (I've also had to use a carbon-copy machine to print my card details onto a piece of paper to make a deposit a couple of years ago - now that was ancient tech!)