Yep. A former manager of mine and a huge fitness nut was riding his bicycle at warp speed along the right side of an urban street with no shoulder. He was passing a line of stationary vehicles at a red light. The passenger in one of those vehicles opened thier door to step out (after all, who expects a bike to be hurtling down the 18" space between car and curb?) My manager hit the open door and his body went THROUGH the passenger window. He survived with a concussion and a cracked cervical vertebrae. His very expensive bike was squashed like Play-Doh. I think the passenger had a broken hand.
Bottom line was this guy never thought the accident was his fault.
There is some kind of smug self-rigthousness hormone that riding a bicycle stimulates. I won't regal you with my war stories. I do recall one sixty-ish guy at work who was over weight and slightly lame. Seemed he was a real fitness enthusiast, who kept winding up recovering from bicycle-car accidents that were - wait for it - NOT HIS FAULT!
BTW, know how many motorcyclist get killed and maimed when a driver opens the driver side door?