Check this out! This if from the blog of a friend of a friend.
Reminds me of the big red button I had in my classroom last year. If you pushed it, it cut off the power to all the outlets and you had to go into the maintenance closet and open the breaker box and... big pain in the butt. Nearly every time I left the room some--apologies Hobo Teacher--jack-a-ninny would press it. Made me insane. But really, how could you blame them? It was practically calling to be pressed.