There was food left over from a luncheon at my job. I decided to take about a dozen bagels to give to some homeless people I often see while walking back to the metro. I came across a woman who was clearly malnourished. I offered to give her the whole supply, but she politely (and strangely) refused, and only with my insistence did she bother to take at least one. She did not want any more than that.
When I asked her why, she replied that there are other homeless folks that could you that food. That sort of altruism even in the face of desperation is Earth shattering. Would I have done the same in her position?