A travelling salesman stopped alongside a field on a country road to rest 
a few minutes.
The man had just closed his eyes when a horse came to the fence and began
to boast about his past. "Yes sir, I'm a fine horse. I've run in 25 races
and won over £5 million. I keep my trophies in the barn."
The salesman worked out the value of having a talking horse, found the
horse's owner and offered a handsome sum for the animal.
"Oh, you don't want that horse," said the farmer.
"Yes I do," said the salesman, "and I'll give you £10,000 for the horse."
Recognising a good deal, the farmer said without hesitation, "He's yours."
While he wrote out his cheque, the salesman asked, "By the way, why
wouldn't I want your horse?"
"Because," said the farmer, "he's a liar - he hasn't won a race in his
life."