Ideas of questionable quality

[Dhaidburt]

A small chance of mail having an activated mousetrap in it. Smaller chance that it has the cream pie mousetrap in it and another teeny tiny chance it's a grenade/pipebomb mouse trap. Fun for the family

Actively ticking if it's a pipebomb. No sneaking around with this thing, and if you actually open it without thinking that's on you!

Also would like to posit the idea of someone else's mail being found in mail