A mother, father, and young son are visiting the circus. The elephants walk out into the ring, and the little boy points and asks his mother, "What's that?"
"That's the elephant's tail," she replies.
"No, under the tail," insists the youngster.
The mother, clearly embarrassed, says, "Oh, nothing."
The boy then turns to his father and repeats the question. His father looks and says, "That's the elephant's penis, son."
"So, why did Mum say it was nothing?" asks the boy.
The father draws himself up to his full height and declares, "Son, I've spoiled that woman."