Design defects in small gun safes from Stack-On, GunVault, and Bulldog mean that they can be opened by toddlers:
Full story. This seems a lot like what goes on in computer security - designers not being as smart as they think they are - other than the 3 year old getting accidentally shot.
UPDATE 28 July 2012 16:47: Oops, it looks like this was presented at DEFCON. Which makes the tie in to hacking obvious. Damn, I need to get out there next year.