This is kinda cool. I heard a news headline today about Columbus adding more red-light cameras throughout the city. The person in charge noted that these are a "negative deterrent" rather than a positive one since if you get busted you pay a ticket. Obeying the law and not running red-lights has no "positive" benefit to drivers (at least monetarily).I think part of the same series brought out the piano stare case at a subway stop... give me a minute and I'll find the video link.
Obviously you just need to watch the entire video to see the related piano stairs video.