Out in Beverly Hills, a plastic surgeon named Craig Allen Bittner pioneered a new way to cut fuel costs: Human fat. He would convert the excess fat from liposuction operations into biodiesel that fueled his Ford SUV and his girlfriend's Lincoln Navigator. Indeed, a gallon of fat will get you about the same mileage as a gallon of fuel, provided your car is properly outfitted to burn it. Gross, but certainly environmentally friendly. Forbes reports that the Bittner is under investigation by the public health authority, as it's "illegal in California to use human medical waste to power vehicles." Seriously? Is there literally a law saying that, or is it just illegal to use human waste for any purpose save disposal?