There have been locksport/locksmith types at every hacker-camp I've been to. It's like the law or something. There has to be a tent filled with people cheerfully fiddling with locks and a good handful of presentations about opening secure things and voiding warranties for the purposes of entertainment.
So like any sensible person I've been meaning to buy a set of picks so I can have a fiddle with lock-picking in the privacy and comfort of my own home. Or indeed at work when I'm staring into space and fiddling with a broken serial connector, I might as well be fiddling with a slightly broken lock instead.
Anyway.
The really very useful thing, which I've not seen before, is the cut-open lock. Which means I can also see what I'm pushing to and fro, rather than just having to guess it.