An old man lived alone. He wanted to dig his potato garden, but it was very
hard work and his only son, who would have helped him, was in prison for
bank robbery. The old man wrote a letter to his son and mentioned his
predicament.

Shortly, he received this reply: "FOR HEAVEN'S SAKE, Dad, don't dig up the
entire garden, that's where I buried the money." At 4 a.m. the next
morning, a dozen policemen showed up and dug up the entire garden without
finding any money.

Confused, the old man wrote another note to his son telling him what
happened, and asking him what to do next. His son's reply was, "Now plant
your potatoes, Dad. It's the best I could do from here."