A patient went to his local chiropractor to see about his back. During the examination, they started talking about horse racing.
The doctor said, "You know, I have a horse. He's really fast . . . well, fast enough to beat most of the others. In fact, the last 3 races he was in were all mighty close races. Fortunately he won them all by a nose. You might want to bet on him sometime".
A week later, the patient went to the races. He remembered what the good doctor told him but he could not remember the horse's name. In fact, he didn't remember asking what it was.
In the first race, there was a horse named Polar Doc. Since his doctor's name was Doctor North, he thought that probably was the doctor's horse and put $10 down on him to win. Polar Doc finished 6th.
In the 5th race, there was a horse named Lumbago and another named Diamond Back. Now, he wasn't sure which was the Doc's but he figured one of them was so he put $10 on each to win. Lumbago finished 2nd and Diamond Back was right behind in 3rd, both were lengths behind the winner.
The next day he was in the doctor's office and decided to ask him the name of his horse. The doctor replied, "Pinnochio, he won the 7th race last night . . . paid $135.20 to win."