A bunch of IDIOTS!!!! The thing that is funny about something like this is, bike messengers and the like that ride like this are some of the most vocal and outspoken when it comes to bicycle riding rights, and getting bike lanes, more awareness, more bike parking, etc. etc.., then they act like this, give ALL bikers a bad name, etc.... To put this in persepective, what if you were to act like that with any thing else, such as in your car, driving like that, disregarding other people's right of way.... It's just like people that "tag" or do graffitti to public or private property, all in the name of their "art" or being cool or trendy, the other thing that sucks about this type of behavior is, you hit one of these fools in your car, you had the right of way, but you are looked down on cause you were in the car, versus the "defenseless" biker, your insurance goes up, blah blah blah.... OK rant done.....