A couple takes their young son to the circus. When his father goes to buy popcorn, the boy asks: "Mom, what is that long thing on the elephant?"
"That is the elephants trunk, dear," she replies.
"No, Mom," the boy clarifies: "down underneath."
His mother blushes and says: "Oh, that's nothing."
The father returns and the mother goes off to get a soda. As soon as she leaves, the boy repeats his question.
"That's the elephant’s trunk, son," the father explains.
"Dad, I know what an elephant's trunk is," the boy says: "What’s the thing down there?"
The father says: "Oh, that's the elephant's penis."
"Dad," the son asks: "how come when I asked Mom, she said it was nothing?"
The man takes a deep breath and explains:
"Well son, here's the truth: I have really spoiled that woman."