This is off-topic, but fun. Got an old hard drive? Want to amaze your geek friends? Repel women?
Check it out.
As they note, bad guys will use better tools.
If you want to attract women (or repel them less aggressively) try the hard drive wind chime.
Movie buffs may recall that in the Bourne Supremacy Jason Bourne gains amazingly quick entry into a key locked hotel room using some kind of gizmo. I just thought this was Hollywood fakery but it turns out that experienced users of electric lockpicks really can open a standard pin tumbler lock in a couple of seconds.