I saw a Critical Mass ride while out for a walk. I walk, bike, and drive. They were doing a mass ride, taking up the whole street while moving, which is fine. They came to a very busy crossroads in my neighborhood, where they rode around in circles for about 10 minutes, whooping it up loudly. It was terrible PR. I asked a couple of them what their objective was, and they could not answer. They did tell me, Critical Mass, its done in lots of towns, once a month, but they could not explain their purpose. They had no banners or leaflets to hand out. After watching that collection of idiots for a few minutes, I started walking thru them, screwing up their circling. Other pedestrians joined me. It worked great, and if I am ever stuck in my car by their circling around several times in an intersection, I will get out of my car and start walking thru them. I do not mind their protest by mass riding, and even running red lights. But circling around for several minutes in an intersection while creating noise pollution is not acceptable.