Thanks, everyone. Very interesting thread. During summers in grad school I was a Y camp canoe guide in northern Minnesota and Canada. The first summer was tough, as I wanted to take "my" trips, but I had the annoying ballast of all these whiny, inexperienced kids I had to drag behind me. At some point early in my second summer (and I'm embarrassed it took that long) I learned what someone mentioned upstream in this thread, that it wasn't about me. And then everything changed. All of a sudden it got to be fun to enjoy the trips through kids' eyes and help them along. I may have to consider leading bike tours after I retire (no time soon).