You can buy a little anti-theft device that locks to the valve stem of a car tire. If the car is driven faster than 17 miles an hour, the air leaks out of the tire. The device is made of bright green plastic so that a would-be thief will spot it and be discouraged from stealing the car. It's a neat idea, but the LockPickingLawyer was able to pick the lock in a jiffy using a "low-skill raking attack." And that means professional car thieves already know how to pick the locks on these things, too.
Image: YouTube
