Cops leave their police cars running when they go into gas stations and stuff or when they get a call. A high school dance or something would be great too, they never lock their cars cause they think no one will do something like this. Jump in the car with a freshly rolled swisher or jibber and suck it down as fast as you can. Tape the whole thing, with your face covered of course, put it on you tube and you will become a hero in a matter of days. it's risky i know, and i might just do it but i'm already on probation for quite a while.