Here I am usually worried about some soccer mom not paying attention and blasting me while riding...
Coming home today on a nice 45mph main road (in the car) and some bright roadie on a sweet SuperSix, all kitted out, blows a stop sign to my right at full speed coming out of the development he lives in and attempts to take the lane.... the only problem was my car was already occupying it. He went over, bike went under, and is at this time a mass of carbon fiber with no appreciable shape.
Biker gets up screaming, at the same time a county cop that was coming the other way stops, having seen the entire thing. He actualy gave the biker a "Failure to obey a traffic control device" ticket and sent me on my way with the guys info for my ins company.. Other than a lot of blacktop rash and fully torn Cannondale kit guy seemed fine. Bike was utter and complete toast, I ran over it with front and back wheels and it balled up under the car. Once the discussion started with the cop, and the guy realized I bike (d'oh, the Yakima rack setup on the roof might be the *first* indication!), he calmed down, but he certainly wanted it to be my fault regardless of the several eyewitnesses. Everyone said guy never slowed at his stop (I didn't have one), and appeared to actually be trying to be accelerating trying to get in front of me .
Be careful out there!