This one may seem like a no-brainer, but it's probably not a good idea to hide the spare keys for your first and second car inside your... uh, car. Perhaps you can already tell where we're going with this... for the sake of the story, though, we'll continue. What might happen if your car were stolen? You'd be giving a thief keys to the car they just stole, plus, as a bonus, the keys to your other car.

Unfortunately for at least one man, the scenario in the preceding paragraph is a true story. "We believe the keys for both vehicles may have been inside the initial vehicle that was stolen," said Cornwall police spokesman Blake Paquin, who added, "We never recommend hiding keys in a vehicle." The spare keys for the man's 2002 BMW 325 were hidden in his 2003 Hummer H2, which led to the theft of both vehicles... within the same hour. Doh!

[Source: Andrew Seymour / Ottawa Citizen]