noglider: I ran that possibility through my head a few times. Maybe he had been heckled so many times that he'd learned to just ignore people yelling stuff at him from cars. Who knows. But I find that many people on bikes ignore simple greetings, let alone words of encouragement, even when I am also on a bike. It could be that they are self-conscious, or maybe they just hate me at first sight. Perhaps they see my tricked-out mountain bike with all its bells, whistles, and speakers, and assume I'm some kind of bike psycho that should be avoided. In any event, it's a shame that a sport that opens the door to social interaction in so many ways often ends up with participants ignoring - and even disrespecting - one another.