Sturdy Black Stallion

A retiring farmer wanted to sell his land. He had to get rid of his farm animals. So he visited everyone in the village. He gave a horse to those families where the man was the boss, and he gave a chicken to the families where the woman was the boss. In the middle of one street he found a couple outside, gardening.
'Hey! Who is the boss around here?' he asked.
'I am the boss,' said the man.
'I have a beautiful white mare horse and a sturdy black stallion to give away,' said the farmer. 'Which one would you like?'
The man was fascinated by the sturdy black stallion, he pointed and said, 'I would like that one.'
'No, no, Jimmy, get the white one,' the wife horned in.
'Here is your chicken,' said the farmer.