Potato Garden

An old Jewish 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 Saul, who used to help him, was in prison for insider
trading and stock fraud.

The old man wrote a letter to his son and described his predicament.

Dear Solly:
I am feeling pretty bad because it looks like I won't be able to plant
my potato garden this year. I'm just getting too old to be digging up 
a garden plot. If you weren't in prison for stock fraud, all my troubles
would be over. I know you would dig the plot for me.
                                Love,
                                Papa

A few days later the old man received a letter from his son.

Dear Papa,
For heaven's sake Dad, don't dig up that garden because that's where I
buried all the money & the stocks.
                              Love,
                              Solly

At 4 am the next morning, a team of FBI agents and local police
arrived at the old man's house and dug up the entire garden area 
without finding any money or stocks. 
They apologized to the old man and left.

That same day the old man received another letter from his son:

Dear Papa,
I'm sure by now the FBI has been there and dug up your garden. 
Go ahead and plant the potatoes.
That's the best I could do under the circumstances.
                                        Love,
                                        Solly