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