I dont think their taking it out of the gas cap, all you have to do is take the fuel line off the motor put a nail in the end pump the ball a few times put the gas can on the ground and fill it up. I sure thats how its being done, they stand back a hundred yards and watch, if someone comes out and sees it they just walk away, if not they pick it up and go. (I am not a theif I have alot of cop friends)