There's a guy in my neighborhood that rides around the neighborhood 3-4 times a week, looks like for 45 minutes or so. Wears sweat pants, sweatshirt, and a baseball cap. Rides an upright bike, that I think is some sort of hybrid.

Last week, I saw him and he'd put Zipp 404 clinchers on it. I was seriously tempted to turn around when we passed and ask him WTF? but it's his money, and nothing productive would have come of it.