The sheep farmer, the worker and his wife

There is this sheep farmer in Australia; he is the only white man in the area for hundreds of miles. All of the people he employs are aborigines.
One day a worker came to him and said, hey boss my wife gave birth last night to our first child.
The boss congratulates him, but the aborigine is mad, he said, the baby is white, and you are the only white man around these parts.
The boss leads the aborigine out to the fields, he said take a look around, what do you see? The aborigine said thousands of sheep grazing. The boss then went on to ask, what color are the sheep? The aborigine replied, most are white, but there are also a quite a few black colored sheep amongst them as well.
The boss said exactly, it?s just a throw back of mother nature and you have no cause to worry.
The aborigine frowns, scratches his forehead and paused for a minute, then said, hey boss, if you stop screwing my wife,I will stop screwing your sheep.

Dan!

Baaaaaaaaad.