After seeing what a Shoei RF-1200 full-face helmet looks like after scraping down the highway with my wife's head inside,,, eh,,, 'permanent disfigurement or worse' comes to mind. (Not a scratch on the wife from the neck up. Thank you Shoei!!! )

When it's too hot for helmets/mesh jackets, I simply park the bike and take an air-conditioned cage.

Lotsa 'shorts and flip-flop' riders here now,,, I guess they don't have a car...