An old country farmer had a wife who nagged him unmercifully. From
 morning till night, she was always complaining about something. The only
 time he got any relief was when he was out plowing with his old mule.
 
 He tried to plow a lot. One day, when he was out plowing, his wife
 brought him lunch in the field. He drove the old mule into the shade,
 sat down on a stump, and began to eat his lunch. Immediately, his wife
 began nagging him again. Complain, nag, complain, nag - it just went
 on and on. All of a sudden, the old mule lashed out with both hind
 feet and caught her smack in the back of the head.
 Killed her dead on the spot.
 
 At the funeral several days later, the minister noticed something
 rather odd. When a woman mourner would approach the old farmer, he
 would listen for a minute, then nod his head in agreement; but when a
 man mourner approached him, he would listen for a minute, then shake
 his head in disagreement.
 
 This was so consistent, that the minister decided to ask the old farmer
 about it. So after the funeral, the minister spoke to the old farmer,
 and asked him why he nodded his head and agreed with the women, but
 always shook his head and disagreed with all the men.
 The old farmer said, 'Well, the women would come up and say something
 about how nice my wife looked, or how pretty her dress was, so I'd nod
 my head in agreement.
 
 'And what about the men?' the minister asked.
 
 'They wanted to know if the mule was for sale.