Don't want to incriminate myself too much from my cycling days in Bristol ( ), but i've been nearly been cleaned up a few times on the streets. Most commonly at junctions and roundabouts where you are in the left hand lane to go straight on, and the car either tries to go through you to turn left, or try to get past and then turn in front of you!
Having survived death, your thoughts certainly do tend towards "revenge", *Ahem*. Lets just say my three riding years at Uni resulted in a karma draw...
But yes, as there are companies that already sell bike insurance against theft, so at least let them extend it to third party cover, I know me and Fran would take it out, after all, motorcycle insurance is somewhat of a bargin compared to cars!