Since when aren't bikers supposed to run red lights or stop signs? I mean, yes, you look before you go obviously, but you don't have to wait for the light to turn green if there are no cars coming on a bicycle like you have to in a vehicle.
And I've heard of one instance in St.Louis a few years ago when a drunk driver started fucking with someone who was biking home, trying to hit him with his truck!
So, that biker eventually lost the guy, ended up following him from a distance, saw where he lived, and in the middle of the night, with the rain pouring down on everything so loud you couldn't possible hear anything other than the rain, he let all the air out of that guys tires.
And I must say that that person probably kept that guy from fucking with bicyclists from then on, so - whoever did that, I support them.