^this^
Since when I get to work I am usually hungry for breakfast number 3.

I agree with all the comments here. I may pass someone every now and again and say hi. Rarely do I get a response back. These people are regular commuters and not trying to beat Contador to work. I enjoy being with my thoughts, however when I run races I like to have a pace group and I guess the same is true with cycling. I kind of like to have someone to pace with if we talk that's a whole different thing.

A few days ago I was on my way home and a commuter passed me. As he came in front of my wheel I noticed a loud tick in his drive train. I looked at this rear d and promptly informed him that his chain was about 3 links to short and was pulling his rear d about 5 degrees forward. He said thanks and opined that that could be why he was having problems with his drive train.

The above probably has nothing to do with the topic, but I guess its just an example of what a pace group can do.