There once was a man who owned a very beautiful horse. The most noticeable attribute of his horse was its beautiful mane. One day the man noticed a very strange happening; small sparrows were beginning to build their nests in the horse's beautiful mane. Obviously, this disturbed the man very much so he went to the local veterinarian to seek a solution to this problem. The veterinarian suggested that the man wash the horse's mane in yeast mixed with water. The man did as he was told, and sure enough, the sparrows quit their nest building endeavor in the horse's mane. The owner was delighted, to say the least, but he was puzzled as to why the yeast mixture ran the birds away. This bothered him so much, he finally called the veterinarian to find out. The vet told him, "Its very simple. You see, Yeast is Yeast and Nest is Nest, and never the Mane shall Tweet!"