Have you ever gone hiking, and found yourself behind loud people, who scare off animals, pick flowers and generally act ignorantly? Leave No Trace, an outdoor ethics group, wanted to educate weekend hikers about behavior on the trails, in a way they would actually read. By using the iconography of trail signs, and humor, these posters engage people, and educate without lecturing. After reading these, its hard to go ahead and act like a bonehead.