A young man is wandering around the zoo looking  at the animals. He suddenly remembers about an appointment that he scheduled.  Unfortunately, he forgot his watch. He searches for someone who could give him  the time.  He sees a zoo keeper standing next to an elephant. “Excuse me, sir,” says the  young man “Do you know what time it is?”  The zoo keeper reaches under the elephant, grabs his balls and starts playing  with them.  ”Mmmmm, it is about 3:00,” the zoo keeper responds.  The young man looks at him in awe, “How did you know that?” The zoo keeper  looks back at the man, “I looked at the clock on the wall right behind  you.”