From the Bike Washington listserv
I unfortunately had the awful experience of being hit by a car on my commute home this evening. The details are as follows: Around 5:50 PM I was riding along First St. NW with other commuters. We crossed over Florida Ave and a car came in behind me, horn continuously on, and accelerated into my rear wheel knocking me to the ground. The driver then got out of the car and yelled some obscenity at me. He got back into his car and left the scene.
I ended up with a few bruises and bumps but luckily no serious injury, but my rear wheel was destroyed along with my saddle, still not sure about the frame. Although there were seven plus witnesses, we were only able to get a partial license plate. We did get a great description of the car. The police arrived on the scene and took all the witness statements, etc and the incident will be filed as a hit and run.
Hopefully, with a partial plate number and the make of the car they can find the driver. Honking your horn, one would hope, negates the "I didn't see him" defense.