A thief was on trial before the King and sentenced to death. The asked the King to spare his life. "You don't know it, but I am the greatest teacher in your land. If you spare my life, I promise to teach your horse to sing." The King smirked but accepted the offer. You have a year, and if the horse cannot sing, you will be killed.
Daily, after that, the thief spent his entire day singing hymns to the horse. His friends laughed as they saw him and asked what he hoped to accomplish. "Many things can happen in a year," the thief told them. "The King may die, the horse may die, I may even die. Or, ... maybe the horse will learn how to sing."