Have you ever stopped to get gas and sat your wallet, purse, cell phone or coffee on top of the car while you attended the pump? Then drove off? I have! And it is no fun when you get to your destination and find you wallet is missing.
Besides happening to me, I have seen this actually happen to people when I was at the gas station and cell phones do fare to well either! :)
Every once in a while I get an email from one of my friends that has something interesting I think should be shared.
When I received this a few days ago I thought Hmmm. I have used some of these tricks before to secure my identity.

