We were discussing generosity and gratitude one day in my high school Civics class, and the teacher told a story that stuck with me. I've retold it many, many times over the years. As he was about to walk in to a McDonald's, a homeless man stopped him and asked for money for food. He answered that he would buy him some. He came out a short time later with a hamburger for the man, and handed him the bag. The man looked in the bag, looked up at my teacher, and said "What, no fries?"