I've had someone successfully boost a gas can in the bed of my pickup recently. Too bad that the container was eventually on its way to the Austin hazardous materials site because it had been sitting since 1999 in a shed.
I saw the gas can (well marked) nearby an apparently abandoned Mazda that was on the side of the road a couple hundred feet down from where my truck was parked. I'm guessing the "liberator" of the can earned the right to keep it having to pay for a tow, fuel line flush, and possibly engine repairs.
A friend of mine with an older F-150 that has two tanks did something more insidious. He moved the fuel fill for the working tank to the bed, and the tank with the fuel fill that wasn't used, he had filled up with rancid gas (so it did smell like gasoline) and water. Needless to say, there were plenty of times there was an inoperative vehicle near his truck.