"I concur with previous comments that wearing a helmet is up to the individual, however, nothing irritates me more than cyclists that choose to ride with their helmet hanging around their handle bars...why? To put on when a cop comes into view? It is perfectly legal to ride without one. To put it on at the anticipation of an accident? Yeah, right. If you don't want to mess up your hair, leave your helmet at home. If you want to give your skull a bit of extra protection, put it on your head."