Work at a medium-large supermarket.
We get customers who queue up at the kiosk to buy at least one newspaper. Nothing else - tobacco or lottery. Then ask for the receipt as they shopping in the supermarket.
My workmates have no idea why some customers do this. We have mentioned other customers pay for newspapers with their shopping. These people who pay for newspapers separately look at us with a blank stare. We are helping them to save time!
Why queue up twice?