hm, ok??????? alleycats are common in all the countries with proper bicycle messengers (us&can, europe, aus). i've competed in a couple and think it's hell. cause u lkiterally race through a, in most cases, strange city in the dark. u have to complete certain tasks at chepoints and deliver stuff. you pulse is high, you are high on adrenalin cause you ride through traffic in the darknes (most cases u don't have lights on you), you have to watch out for the police, jump red lights and criss cross the city with steps up to the pavement, poles and chains hanging in your way. and then, if you are totally nut you are riding on a track bike with fixed gears and no brake! it only feels cool afterwards at the party :-)