Wow [ame="http://www.youtube.com/watch?v=NnrWqjgjFL0"]YouTube - Bump Keys in the News - San Francisco #3[/ame]
I have tried bump keys. It does work but it is far more difficult than what is deplicted on the internet.
Funny story. One time I was in my church's parking lot, which is right next to my hometown's Junior College. I was walking out to my 99 Ford and this gent walked up to me who had locked his keys in his older model Ford truck. He asked me if I could borrow my key because his friend, a mechanic, said that about a quarter of all new Ford truck keys can open older trucks. Low and behold, it worked.
As my high school Gov't/ Economics teacher used to say, "a locked door only keeps honest people honest."
yea, i've heard of these before. it takes some jiggling to open up my windows though, so I don't really think that a good lock will make much difference to someone determined to get in. perhaps the 4 ft by 4 ft cracked window in the back is an interesting target, as well.