I came across this site a couple of years ago and could never find it since. Just read it! Among things mentioned, one person says something along the lines of that they glue bits of a razor to their hood star, came to the car one day to find the hood star there, but blood on the car, and a kicked in fender, or something like that. Apparently the would-be thief cut himself trying to yank off the star, and became angered so he kicked the car! Isn't justice great!

Here!