Wow this is my biggest fear...to be hit from behind completely unaware. Glad to hear you are "OK" and not giving up biking. Here on Guam a lot of my route to work has absolutely no shoulder and even if, I see careless drivers drifting into the shoulder almost everyday. This is why I ride in the shoulder against traffic and pull off into the grass often. I must be able to see and react to shoulder drifting drivers. No way I can turn my back to these *******. I don't see how you guys do it;it takes a lot of guts.