No flames, but the life of a dear friend was saved because he had his helmet on while riding a bicycle. He broke every bone in his face, and a majority of the bones above his waist. The helmet was what kept his skull from caving in.
Now as a conservative I believe in personal responsibility, so you absolutely have the right to decide not to wear a helmet. But we need more conservatives in this country, not fewer, so please be careful.
FRegards.