Last week, as I was riding home, I got on the MUP and rolled down a hill. An overweight guy on a MTB wearing a back pack over a white tee-shirt and using sandals on platform pedals zipped by me on his knobby tires. In no time, he was a couple hundred feet ahead. Then, he hit an uphill stretch. I passed him when he and I took different routes for about 200 feet. I kept on moving, and he was eventually out of my rear view mirror.
A couple miles of flats later, I saw him gaining on me. I turned off the MUP to get to my house, but if I had gone much farther, he would have caught me.
This dude is going to be a really, really strong rider if he sheds a few (which he will if he keeps riding at this pace).
Bike commuting is great, isn't it?
Edit: And yes, I'm pretty sure it was not Jan Ullrich.