A trick

The phone rings at CIA headquarters.
"Hello, is this CIA?"
"Yes. What do you want?"
"I'm calling to report my neighbor Johnathan Smith as an enemy of the State. He is hiding undeclared diamonds in his firewood."
"This will be noted."
Next day, the CIA goons come over to Johnathan's house. They search the shed where the firewood is kept, break every piece of wood, find no diamonds, swear at Johnathan Smith and leave.
The phone rings at Johnathan's house.
"Hello, Yankel! Did the CIA come?"

"Did they chop your firewood?"
"Yes, they did."
"Okay, now it's your turn to call. I need my vegetable patch plowed."