I've been taken out hard by car doors twice on a bicycle 1 driver door, 1 passenger door. It's a very quick stop. Once still wearing my leather moto jacket because I was cold after riding the moto home. Still got a scrape on the shoulder through the padding from the edge of the door. I'm more worried about the people not trying to hurt me, dumping out coffee,spitting. Also hit a pedestrian who jaywalked out from the front of a bus.