Pete the plumber took up gardening as a hobby. He grew all the usual vegetables, such as lettuce, tomatoes and beans, but, after several seasons, he became fascinated with beets.
He came to think, "You can't beat beets!"
One year, late in the season, he noticed that some of his beets were wilting. He called the local county extension agent for advice.
After listening to Pete's description of the problem, the agronomist on duty decided he needed personally to look over the situation. They could not agree on a time when both could meet in the garden, so Pete gave the agronomist the address and a description of the house.
When the extension agent drove out to examine the beets, he forgot to take the directions to Pete's house. He thought he remembered the address, but, when he arrived in the area, he found that two houses on the block fit the description, one with an even number and the other odd. Both had gardens with lots of beets. He queried a neighbor and learned that both houses belonged to plumbers. He chose to examine the beets in the garden that seemed most wilted.
Taking out his stethoscope, he carefully examined the beets. He quickly identified the problem, so returned to his office. Later, when Pete the plumber called, the agent learned he had been at the wrong address.
He exclaimed: "My gosh, I've been listening to the beets of a different plumber!"