i did something similar once. the attendant was taking forever and im pretty sure he forgot about how the nozzle was still in my car. well i had already paid, so i got out and hung up the nozzle, put the cap back on my car, and started to drive off. as i take off, i see him come running out and i just look and laugh at him and wave. Maybe next time he won't assume it takes 15 minutes to fill my car with gas... jackass