You can do everything right and get taken out by an accident. So far I've dodged a loose trailer that came off next to me going the opposite direction, a rock dislodged by a marmot from the cliff above, two drunk drivers drifting towards me, a city bus turning towards me on an icy road, a few other left turning drivers who didn't see me in a crosswalk (I now carry a high intensity pulsing flashlight for crossing at intersections) and two near misses when a gust upset my glider.