I hide some miscellanous things in an empty uno box. But put the box in something else and that someting else in something else as well. If someone finds that, they`re snooping. If they`re smart, they will know they found something they shouldn`t have, and may not talk to you about it, if they do. If they decide to bring it up, well at least you have pull in the fight you`re about to have.

Good luck!