Oh my gosh.. Why did you have to ask this?
Okay..I'm a terrible person. When I was working in the Finnish Red Cross (!!) just before christmas (!!) I stole some envelopes from there (about fifty) that had the postage payed. Really.. what a dumb thing to steel, but the postages are so high and I have so many pen pals and swappers..
Then I have stolen candy a couple of times as a kid..