I try to get to the hooter if I can see it coming in time, it sometimes stops them in their tracks. Then again, I guess it depends how loud their radio is.
I'm with you on that one, I would hit the perpetrator first, if it was safe to do so. Obviously, self preservation comes first, followed by innocent parties such as pedestrians and other road users.
I had something similar when I met that Fiat 500 overtaking a lorry over the brow of a hill a while ago, over a solid white line. It was a choice between trees & ditch, or glancing blow off the overtaking car... fortunately the driver steered away from me and into the side of the lorry, as I swerved onto the grass verge that was available, missing me by a whisker.