Re: Hmmm....
So, a card scraper (metal oblong for smoothing wood with a hook on the edge). Strong enough but could not be pushed hard enough.
So, I banged it a bit with a hammer and hey! presto! I was in.
Couple of years back we had a temporary office with a temporary computer room next to it. Then someone decided that we were not to enter the computer room, despite us needing physical access to some of the systems therein. This they thought to achieve by installing a code lock on the door. However, it was easy to circumvent: the door turned outwards, and the hook on the serrated knife on the Leatherman Charge was exactly what one would need to flip the bolt.