I'm sure everyone has heard about the Kryptonite fiasco (which affects all similar locks.) I figured I'd give it a whirl on my lock. I didn't have a pen that fit the lock correctly but I got a pen in there after pounding it into a wall in the parking lot. And the lock did make a 1/4 turn. But then I couldn't turn it all the way, or get it back to where I could put my key in. I eventually got the lock back to a good state after pounding it against the ground with a cheapo pen. I'm going back to using a combonation lock until I get a rebate and can buy a new NY Lock, which is not supposed to have these issues.