I was riding back from the grocery store this afternoon with a very light load (the trip was mainly to get city trash bags as we were out and tomorrow is trash day), and was riding up a fairly gradual incline on this one street and all of a sudden I hear another bike coming up on my left. Somewhat unusual around here, and even more unusual was that this guy was wearing a fluorescent/reflective vest as I do. Anyway, he blew by me like I was flippin' STANDING STILL!! And it wasn't like he was even trying to go fast--he looked like just another person using his bike to get around town, not a racing type (although he was on a road bike rather than a hybrid). I'm not sure why it bothered me so much, but I felt like I wanted to go crawl in a hole! I guess I didn't realize how slow I really was until then. I'd say my average speed was about 12 mph (the majority of the return trip is uphill). Sorry for the random vent, just aggravated with myself right now!