Joggers are the worst kind of walkers. To a jogger, Nature is not useful in and of itself but can be exploited for the more immediate purpose of having a nice long run that flicks through an optimum amount of scenery in the shortest possible time. Sometimes they do not even want to enjoy the run for its own purpose, but are interested only in buffing up their bodies, demonstrating their ample free time to other members of high society.
Joggers do not stop to smell the flowers, or chat with you as they go by. Usually they are wearing iPods to get as much usefulness out of every second as possible. They exemplify the civilized person who has no understanding of how to use their time.