Defendius Door Chain by Art Lebedev

Haha. Love the clever take on this door chain lock. The involved process of unlocking this door would certainly give one enough time to think about whether they want to let their visitors in or not. Or at least, this contraption would be excellent to legitimately formulate the excuse:  "Sorry, I can't let you in right now. I'm stuck in a maze..."

To note, also ideal for keeping that new crush that you're so infatuated with from leaving your premises too early. Probably doesn't meet fire codes though, huh?

Available for $49.99 at ThinkGeek.com