A young boy was on a plane with his mother. As they waited to taxi tot he runway, he saw all the large planes, and a confused look crossed his face. He turned to his mother and asked, “Mommy, if big dogs, have baby dogs, and big cats have baby cats, why don’t big planes have baby planes?”

His mother turned a bewildered look on him, and needing to pbum the buck, she answered, flustered, “Well son, I think you should ask the flight attendant. She knows everything about planes.”

So the young boy, walks up to the attendant, and poses the question to her as well.

The flight attendant smiles huge, and answers cheerily, “The reason there are no baby planes is because this airline always pulls out on time. Now have your mother explain that to you.