Leon let out a puff of air that hung for a few seconds in the cold autumn air as he walked down the sidewalk, fresh from his workout at the local gym. He was tired, his muscles aching from the exertion of lifting weights, doing crunches and curls, and every other exercise that was part of his routine. As he slowly walked home- wishing that he had thought to grab a heavier change of clothes to wear home from the gym as the afternoon rapidly progressed towards night- he began to contemplate what h