Wonder no more; you are being robbed. Ever notice how you don’t hear any gas coming out of the nozzle until the pump has already rung up 30 or 40 cents?
My brother, the dead biker/miser, would, after the nozzle would kick off and he'd turn off the pump, trigger the nozzle and lift the hose up, to get the last drop in the hose.
He didn't like the idea of anyone else getting the gas he'd paid for.