The Potato Garden
An old man lived alone in the country. He wanted to dig his potato garden, but it was very hard work as the ground was hard. His only son John, who used to help him, was in prison. The old man wrote a letter to his son and described his predicament:
A few days later he received a letter from his son:
At 6 AM the next morning, Scotland Yard and local police arrived and dug up the entire area without finding anything. They apologised to the old man and left.
That same day, the old man received another letter from his son: