It's only just starting here in the UK. Those card payment things seem to have a tip option that can be enabled and they make you hit "no" (or choose a nonzero

It's only just starting here in the UK. Those card payment things seem to have a tip option that can be enabled and they make you hit "no" (or choose a nonzero amount). A dark pattern basically. So many people must feel pressured to press a nonzero button. I'm going to start refusing to press them and make them get it ready to accept my payment.