Biker-Motorist Vandetta

So, I'm opening with some very contraversial debate that's going on here in Big City, Canada. First of all, look at this picture - taken by Adam Krawesky (not me), a photographer who happened to be right there to snap the situation as it was happening.

This photo is totally real and candid. The story is this: Bike-courrier is riding along. Suddenly, a motorist - sitting inside his car - throws food out his window, obviously littering. Seeing this, the biker picks up the garbage and throws it back into the car to land on the motorist's lap! The picture depicts the attack of the motorist thereafter. There are actually more pictures and detailed scoop on Citynoise.org The motorist also claims that biker's chain key, which she was wearing around her wrist at the time, scratched his car. Mind you, this is happening in the downtown core of the city!
There are a few sides to this story, if there are bikes in your city, I'm sure you'll be able to relate. First of, bikers don't get any respect from motorists. Secondly, some bikers are either too aggressive-a.k.a. they scare the fireworks out of motorists creeping up suddenly- or they simply don't watch out at all. What about the photographer who saw all this happening and didn't do anything to break the fight? In any event, whatever side you take, it's putrid that people choose to express themselves in such uncivilized, primitive ways. What do you think?