Freezebyte: Just FYI, if that's the same model lockbox I picked up at Walmart... I could pick the lock on mine with a paperclip. That doesn't mean it wouldn't keep out kids, I'm just saying. I still use mine to lock up a few things from kids, so I'm not telling you to junk it, but I thought you might want to know.
On the other hand, I know that losing the key won't prevent me from getting at the contents!