Baby Airplanes

One day a little boy and his mother are taking a flight out of town. The little boy has been looking out the window and thoughtfully turns to his mom to ask a question.

"Mom, if cats have baby cats and people have baby people, how come planes don't have baby planes?"

The mom is stumped for an answer and tells her son to go and ask a stewardess. The little boy walks over and repeats his query to a nearby stewardess who smiles at the little boy and says

"Did your mother tell you to come ask me that?" the boy says yes."Well, our airline doesn't have any baby planes because all of our flights pull out on time. Now, go ask your mom to explain that to you."