That makes more sense, but to me there’s still enough time while I’m reparking that someone could quickly fill up, we enter the shop at the same time, then maybe they are at a different till and the person in front of me takes a long time, and they end up at the till before me. Or they go to a self checkout, etc etc.
which is why I fill up, leave car at pump, pay, go back to car, repark, go in and shop. To me that’s the only way to ensure no one else is trying to pay for petrol from the same pump!
or, if as I suspect, you can’t actually use the pump until the person before has paid, the suggestion of reparking before paying so that the next person can drive in doesn’t really save them any time as they’ve to stand at the pump until it unlocks?!
I agree that blocking a pump to get shopping is a selfish thing to do so I always go in, pay, and then repark, but I’m still confused by the people who are suggesting you can repark before paying without causing some issue!