I was living in Houston, TX in 1989 when the state legislature introduced a motorcycle helmet law. My best mate's wife worked in the same hospital as Michael DeBakey's heart transplant team. She told us over dinner one night that they were seriously upset about the change. A significant fraction of the hearts that came their way were from bikers. Fortunately (for them) the state largely repealed the law in 1997. You couldn't make it up.