Todd has an interesting story about an attempt to talk business that ended when the other party realized he just wanted to talk. If you have ever read business biographies, one common theme is that many of these successful people spent time just chatting and learning from someone you wouldn't expect.
I think it was Warren Buffett that went to an insurance company's offices on a Saturday and found the CEO there alone. Supposedly they sat and talked for hours and Buffett learned how the insurance business works. But that doesn't happen anymore. I don't know if it is because people are too busy, or if they don't want to share their knowledge. I've always liked to talk with people just to learn, and when they usually think there is some other motive. One college professor I met with several months ago finally put down his notepad and said "so you aren't looking for a job?" "No." I told him. "I just wanted to find out what you were working on. It sounds cool and I wanted to learn more about it."
People don't seem to care about their work very much. I think if we were all more open to talking about it, that would be a step in the right direction.