A young man was sent to Spain by his company to work in a new plant. He accepted because it would enable him to earn enough to marry his long-time girlfriend. Their plan was to pool their resources and put a down payment on a house when he returned. As the lonely weeks went by, she began expressing doubts that he was being true to her. After all, Spain is populated by beautiful women. The young man declared that he was paying absolutely no attention to the local girls. "I admit," he wrote, "that sometimes I'm tempted. But I fight it. I'm keeping myself for you."

In the next mail, the young man received a package. It contained a note and a harmonica. "I'm sending this to you," his girlfriend wrote, "so you can have something to take your mind off those girls." The young man wrote back that…