A tractor salesman was passing a farm, where the farmer was plowing the field with a bull.
He goes over and offers to sell the farmer a tractor to plow with.
The farmer tells him, “I don’t need a tractor, I have three new ones at the barn.”
“Well if you have three new tractors at the barn, why are you plowing this field with that bull, asked the salesman ?”
The farmer replied, “This is part of the bull’s continuing education.
I am teaching him that there is more to farming than messing with cows and tearing down fences.”