A bunch of us young married couples got sitters for the kids and all went out for a little time off from kids and school. When we got back, my ex-brother-in-law's son (about 5 or 6 YO), had found whatever he could to completely take apart one of the old mechanical alarm clocks. And I mean COMPLETELY! LOL His Dad kind of wanted to whup is little hind-end ... but was also proud that he figured out how to do it - and then put all the pieces very neatly all over their bed.
He probably wouldn't take but a second to get in this safe.