A helmet saved my life and I'll tell the story to anyone that'll listen. Like Mr. Silver, I believe in educating people that I have contact with. I'm lucky enough to be in a profession where I get to chat to a lot of people who ride or are thinking of riding and I do make a difference. I won't go anywhere on my bike without a helmet and I make it pretty clear to my friends that I don't want to ride with them if they won't wear one. The downside is that some people will then choose not to commute because they don't want helmet head when they get to work. Vanity is a powerful thing.