Cast Your Bread Upon the Water and it Shall Return to Thee
The story (supposedly true) of a missionary who was sitting at her window when the mail arrived. She opened a letter from home and out fell a crisp new ten dollar bill. As she read the note accompanying the money, her eye was caught by the sight of a poorly dressed man on the street below. Thinking the man was probably not very well off, she place the bill in an envelope upon which she wrote "Don't Despair" and tossed it out the window. The man picked up the envelope, opened it, and looked up at her smiling and tipped his hat.
The next day there was a knock at the missionary's door, opening it she found the man from the previous day holding out a handful of cash to her.
"What's this? I don't understand," she said.
"Lady," he replied, "it's your cut. Don't Despair' paid five to one yesterday."