Irish Gardening

The son sent the reply, "For HEAVENS SAKE, don't dig the garden up, that's where I buried the guns!!!!!" At 3 AM the next morning, a dozen British soldiers turned up and dug the garden for 3 hours, but didn't find any guns.
Confused, the man wrote to his son telling him what had happened, asking him what he should do now?
The son sent the reply: "NOW plant the potatoes!"
Originally published September 12, 2003.