A black light bulb? I didn't know such a thing existed. I guess I don't go to the right kind of party. Why it was lying on the ground in the middle of campus is a question that I won't try and answer. I gather that if you screw this in and turn it on, blackness is very, very black, and the white clothes that people are wearing are a kind of luminous purple. Surely there's some kind of metaphor latent in the very concept of a black light bulb, but I'm too tired, right now, to think of it.