A man is asked to build a fence.

A man is asked to build a fence.

One day a man needed to have a fence built at his house.
He talked to the carpenter and explained how he wanted his new fence to circle property, in the shape of a 'D', when viewed from above. The carpenter said "Sure, no problem. I can have it done for you in a couple of days".
The man returned two days later to inspect his new fence. But when he saw it he was pissed, it was the wrong shape.
"What the fuck is wrong with you!" he said. "I told you to build it in the shape of a letter 'D'!. This is the shape of an 'O'!".
The carpenter turned to the man and said, "Well, you know what they say. The best 'D' fence is a good 'O' fence."