I had a fun commute home today. I paced a guy on an MTB for about 6 miles. Once in a while he would stand on the pedals and push, which struck me as amusing because it didn't seem to change his speed at all. I decided that to pass him would be rude. He was going 15-18MPH, and there was a nasty headwind, so I just cruised along behind him.

Right before we separated, I reeled him in going up a hill just because I could.