I know what you mean i'm a biker too.

Had a few run ins with cage driving cnuts.

Had to laugh one time got I got carved up by a young show off in his 'pimped' up car.
Chased him to the next set of lights,got into a rather heated argument,insults were exchanged and promptly got a punch to the head!

The dafty was in such a rage he forgot I was wearing a helmet! Needless to say he skulked off rather quickly nursing a sore fist haha!! :)