I've had the same experience when riding a long day tour. I had been on the saddle for about 7 hours one very hot day when I passed through a little college town with a big hill. This was just about the point when I was really exhausted from climbing all morning, so I started chugging up the hill like an old VW Bus running on fumes. Just as I'm about half-way up, a very pretty college girl, maybe 18, wearing a dress and riding a fat-tired beach cruiser with a textbook-filled wicker basket on front whizzes by me, gives me half-a-smile, and leaves me in the dust. "Hey...you're just on your way to the next class. I'm on my way to the next STATE!!!!"