And then suddenly I would realize that I couldn’t remember, hadn’t actually consciously experienced, any of the last forty-seven properties I had visited, and didn’t know if I had left a paper or just walked up to the door, stood for a moment like an underfunctioning automaton, and turned around and walked away again. It is not easy to describe the sense of self-disappointment that comes with reaching the end of your route and finding that there are sixteen undelivered papers in your bag and you don’t have the least idea—not the least idea—to whom they should have gone. I spent much of my prepubescent years first walking an enormous newspaper route, then revisiting large parts of it. Sometimes twice.
Bill Bryson