The year was 1863, on a spring day in Northern Pennsylvania. A poor boy was selling goods door to door to pay his way through school. He realized he had only a dime left, and that he was hungry. So he decided he would ask for a meal at the next house. However, he lost his nerve when a lovely young woman opened the door.
Instead of a meal, he asked for a drink of water. She thought he looked hungry and so she brought him a large glass of milk. He drank it slowly, and then asked, "How much do I owe you?"