What's really weird (to me at least) is seeing a Harley rider sitting at a light in full leathers, boots and gloves, with a plastic soupbowl on his head, and right next to him some kid on a crotch rocket wearing gym shorts and tennis shoes, and a $600 full face helmet.
It keeps all the blood in. Ever seen one of those things pulled off a accident victim? Nothing but soup inside sitting on a broken neck. The lucky ones only get the broken neck and paryalyzed. Damn things kill a HELL of a lot more people than they have ever saved.