Then the farmer hollered, "Pull, Buster, pull!" Buddy didn't respond.
Once more the farmer commanded, "Pull, Coco, pull!"
Then the farmer nonchalantly said, "Pull, Buddy, pull!" The horse easily dragged the car out of the ditch.
The motorist was most appreciative and very curious. He asked the farmer why he called his horse by the wrong name three times.
The farmer said, "Oh, Buddy is blind and if he thought he was the only one pulling, he wouldn't even try."
(Pastor Tim's Sermon Illustration and Inspirations List)