10–15 years ago it was common in the US where you would pull up, hit "pay inside", pump all your gas, then go inside and pay at the register. Now because of theft, if you want to pay with cash, virtually all stations require you to go inside, pay for x gallons of gas, and they'll turn on the pump to give you that much. Which is annoying because unless you're really good at guessing, you can't just fill it up anymore.