Via Ace, sisters are doing it for themselves. It’s the sexual equivalent of a spring gun — incredibly effective against unwanted intruders, but if you forget to disable it when you’re “having a guest over,” oh boy.

One of the questions in the FAQ is “Won’t the rapist kill me?” Their answer: maybe.

I need to redeem this stupid post with a newsy link that’s vaguely thematically similar, so here you go. Better deterrence of violent criminals through technology!

Update: Commenters are wondering — once intruders realize they can’t come in through the front door, won’t they simply look for another entrance?