When I was little, my sister and I did not get along. At all. We still don’t and I really regret that, but it’s out of my hands now. Anyway, she liked to go through my stuff, so I needed a way to secure it. My bedroom door wouldn’t latch correctly, never mind lock, so I needed a better place to stash things.

Being a big fan of diary-keeping, my diaries were the items I was most concerned with – like government secrets, they could not be allowed to fall into the wrong hands (namely, the hands of my little sister).

But with no way to lock my door, what was I to do?