It’s five-twenty and raining when you leave the bar. You walk down to the Times Square subway station. You pass signs for GIRLS, GIRLS, GIRLS, and one that says YOUNG BOYS. Then, in a stationery store, DON’T FORGET MOTHER’S DAY. The rain starts coming down harder. You wonder if you own an umbrella. You’ve left so many in taxis. Usually, by the time the first raindrop hits the street, there are men on every corner selling umbrellas. Where do they come from, you have often wondered, and where do they go when it’s not raining? You imagine these umbrella peddlers huddled around powerful radios waiting for the very latest from the National Weather Service, or maybe sleeping in dingy hotel rooms with their arms hanging out the windows, ready to wake at the first touch of precipitation. Maybe they have a deal with the taxi companies, you think, to pick up all the left-behind umbrellas for next to nothing. The city’s economy is made up of strange, subterranean circuits that are as mysterious to you as the grids of wire and pipe under the streets. At the moment, though, you see no umbrella vendors whatsoever.