A man drove his car into a ditch on a quiet country lane. Fortunately, a farmer passed by with a horse. "Could your horse pull my car out of the ditch?" the driver asked. "Buddy's a big, strong horse," the farmer replied. "We'll see what we can do."
The farmer hitched Buddy up to the car and said, "Pull, Samson, pull!" Buddy didn't move an inch.
The farmer said, "Pull, Troy, pull!" Again, Buddy didn't move an inch.
Finally the farmer yelled, "Pull, Buddy, pull!" And the horse effortlessly pulled the man's car out of the ditch.
The driver was grateful, but mystified. "Why did you keep calling your horse by the wrong name?"
"Well, you see," the farmer replied, "Buddy is blind, lazy, and a bit stupid. If he thought he was the only one pulling, he wouldn't even try."