The Bump Key:

Do you know what a bump key is? Google it. Or better yet, don't. Basically it's a filed down key anyone can use to open ANY lock. That means a skilled theif can walk up to your locked front door, do a little QUIET magic and creep right into your house. Dang it.
So this lock hack guy has figured out that the special locks the government uses on their doors are easily "bumpable". Grumpy hilariousness ensues...

via boingboing.net/

(Click the pic for the rest of the story!)