Something like ricerocket said and also pep boys used to carry something similiar to those on the lug nut isle when I worked there a year ago. It looks like a sock but the inside is sort of hones out and you hammer it on to the luck and use something to pull on it so the "teeth" dig into the lug and then you just use it like a socket and take the lock lug off and replace. Those are the exact reason I don't believe in certain types of lock lugs they're too easy to steal....