Is it a "safe", or more of the metal locker type? I have one of the locker types, I could easily cut the top off. An actual "safe" is gonna need the expertise of locksmith to open. Could drilling it wrong for ever lock it? I have no idea, I suppose that if you drill it wrong and somehow bind the lock it could. I would think that the lock could be picked, but then again im not a lock smith. I think that a second opinion from another locksmith would be wise.