Just Wondering....

While coming home the other day I noticed an older gentleman riding a motorcycle coming at me from the opposite direction.  It was drizzling rain, about 55 degrees, and altogether yukky outside.  But this rider, who had a white beard, had no motorcycle jacket on, no helmet, and no other kind of protection on his body other than a loose-fitting shirt, which was blowing in the wind.  I know he had to be freezing cold!!  Ever wonder why people do things like that?  Makes me wonder....