I am glad to see that someone has brought up the issue of riding a bicycle with headphones on. This is sooooooooo not a good idea. My 16 year old son has been taking driving lessons here in New York City where we live. I tell him all the time not to drive with the car radio so loud that you cannot hear what is going on outside around you. A good, conscientious driver must be able to hear traffic sounds, sirens, horns, your own car's sounds in case your car is not working properly, shouting if a pedestrian is trying to get your attention, etc. Tuning out the world while operating a vehicle is selfish and very unsafe for all concerned. Operating a bicycle is just as dangerous (if not more) when you cannot hear anything but music in your ears. Please, everybody look out for each other and share the road - be it in a car or on a bicycle. I say use common sense on Com. Ave. BU Parent (CAS '11)