A man read an ad in the newspaper, "Hunting dog for sale, $2500, but well worth it." He called the number and the man told him that he had to see the dog in action. The next morning they met and went hunting early. The dog flushed two birds from a clump of bushes and when they fell into the water, he walked on top of the water, grabbed the birds, and walked back on top of the water.
The man was amazed, and bought the dog on the spot. The next day he persuaded his brother to go hunting with him. They flushed a couple of birds and the dog again walked on top of the water, retrieved the birds, and walked back to their boat on top of the water. He asked his brother what he thought of the dog and the brother replied, "So, you bought a dog who can't swim."