Sheep Joke: Counting Sheep

I found this great joke at a page of the Zen Sheep Farm site.

Counting Sheep

A shepherd was herding his flock in a remote pasture when suddenly a brand
new Jeep Cherokee advanced out of a dust cloud towards him. The driver, a
young man in a Brioni suit, Gucci shoes, Ray Ban sunglasses and a Boss tie
leaned out of the window and asked the shepherd: "If I tell you exactly how
many sheep you have in your flock, will you give me one?"

The shepherd looks at the yuppie, then at his peacefully grazing flock and
calmly answers "sure!"

The yuppie parks the car, whips out his notebook, connects it to a
cell-phone, surfs to a NASA page on the Internet where he calls up a GPS
satellite navigation system, scans the area, opens up a database and 60
Excel spreadsheets with complex macros. Finally he prints out a 150 page
report on his hi-tech miniaturized printer, turns to the shepherd and says:
"You have exactly 1586 sheep!"

"That is correct, take one of the sheep" says the shepherd. He watches the
young man select one of the animals and put it in his Cherokee. Then the
shepherd says: "If I can tell you exactly what your business is, will you give
me my sheep back?"

"Okay, why not" answers the young man.

"You are a consultant" says the shepherd.

"That is correct" says the young man, "How did you guess that?"

"Easy" answers the shepherd. "You turn up here although nobody called you.
You want to be paid for the answer to a question I already knew. And you
don't know shit about my business because you took my dog."