Sex in Progress Light Broadcasts Your Achievement For Your Roommates, ParentsS

Do people often walk in on your copulation sessions? Just hang a Sex in Progress Light outside your door, fire it up whenever you're meat spelunking and no one will ever "accidentally" bother you again. And as our own Sean Fallon says, if there's ever a "Masturbation in Progress" sign, he'll let everyone know. [Baronbob via Nerd Approved]