Stupid Evil Bastard: Expensive "U-Lock" bicycle locks can...
Rated • 1 review • stupidevilbastard.com
From the page: "I used a Papermate pen, but it definitely was able to open the lock with only about a minute of work. Unfortunately, I am having difficulty relocking it with the pen and now the key does not go in either because the lock is turned. I suppose relocking is not a problem for thieves though."

