It was almost midnight, on a snowy winter's night in Dayton Ohio. I was leaving a trendy new night club, after having had a few drinks with some friends. "It's bitter cold," I thought as I began the walk to my car. Out of the corner of my eye I noticed an old homeless man pushing a shopping a cart full of discarded soda cans . The harsh wintry weather had caused icicles to form in his untrimme...