An odd tradition started in New York City a few years ago. It was an improv (improvisation) art form so claimed by the organizers. A few people gathered, then enter the subway with their pants removed in January. This year, the 8th annual one was held on January 14th, 2009, and about 1,200 people participated in this public display of youthful exuberance or stupidity, depending how you view it. This craze has also caught on in a few other American cities that have subway systems.