Social engineering and pick sets
I sometimes had to open locks in the office, for perfectly ethical reasons, such as "Need backup drives from some guy's locked container and he's on leave abroad..."
Management was uncomfortable at best that I had the pick set.
Solution? Teach the head secretary how to pick locks and let her hold onto the pick set and practice locks. The organization gains a powerful tool against people losing keys to random racks of crap, you gain serious political capital by helping the head admin, and you can have the pick set whenever you need - no questions asked