Your best bet is to get a storage locker from a company that looks dependable. If it's in a compound with floodlights, security cameras and an alarm system, odds are it'll be safe. But if it's in a rough neighbourhood and there's only a chain link fence and your padlock protecting it, I'd be a little worried about putting valuables inside. Who knows when someone won't decide to just yank off all the freakin' doors with a truck in a classic smash and grab manouver?
There's always a way in, and there are always people looking for the way in.
Just take simple precautions and make sure you've got plenty of karma chips at all times.
