to rent a vehicle the paperwork takes quite a while even though they already had my information from a previous rental. when i was finished with the truck i stopped at Casey's to fill the gas tank as required. it cost $8.00. when i got my invoice in the mail a few days later i saw i had been charged $10.00 because whoever checked the gas gauge obviously didn't see the peg was on full. it's easy to add extra charges to someone's credit card thinking no one will notice. well, i did notice.