I was the guy walking up the long walk to the office building at lunch. You couldn't have known that I was exchanging parting words with a mother that had been through a breast cancer scare. She was making her way down the walkway with her crutches. You sprung to the door and held it open even though you you didn't know the gravity of the situation. In an instant you restored my faith in humanity with such a small courtesy. I wish there were more of you.