A mother and father take their young daughter to the zoo. They see the lions, the monkeys, the bears, the birds, to the daughter's delight. Eventually, they come to the elephant cage. The daughter has never seen such a beast before, and has some questions.
"Mom, what's that long thing hanging down?"
"That's the elephant's trunk, honey", explains the mother.
"No, further back"
"That's the elephant's tail, sweetie"
"No! In the middle!"
The mother hesitates. "Oh that? That's...nothing"
The daughter isn't satisfied, so she asks the father.
"Dad, what's that long thing hanging down?"
The father replies "That's the elephant's trunk, honey"
"No, Dad. Further back."
"That's the elephant's tail, sweetie"
"No! That long thing hanging down in the middle! Mom says it's nothing."
"That's because I spoiled her."