I've been commuting by bike ( http://www.youtube.com/watch?v=TgvjnOJwWTU http://www.youtube.com/watch?v=TgvjnOJwWTU ) for about 20 years now and I feel that eve

I've been commuting by bike ( http://www.youtube.com/watch?v=TgvjnOJwWTU http://www.youtube.com/watch?v=TgvjnOJwWTU ) for about 20 years now and I feel that every motor vehicle occupant should be wearing a helmet. The case is quite clear: Most people who die in cars have not had their heads protected by a helmet at the time of the fatal collision. While they might very well be dead regardless, so might the occasional cyclist that got run over by a lorry while not wearing her helmet, so this doesn't really enter the argument. When helmets are mandatory for car occupants, I shall laugh at their faces and ask them if they feel any safer crossing the railroad tracks. I'm also certain my ill manners will improve road safety by a measurable margin. And, of course, I wear a helmet most of the time.