A Bad Southwes Joke

Following up from my earlier post, here is a joke a friend sent me that reaffirms the Southwest flight attendants universally good sense of humor...

A mother and her 5 yr old son were flying Southwest Airlines from Kansas
City to Chicago.
The son (who had been looking out the window) turned to his mother and
asked, "If big dogs have baby dogs and big cats have baby cats, why
don't big planes have baby planes?"
The mother, who couldn't think of an answer, told her son to ask the
stewardess.
So the boy walks to the galley and asks the stewardess, "If big dogs have
baby dogs and big cats have baby cats, why don't big planes have baby
planes?"
The stewardess responded, "Did your mother tell you to ask me?"
The boy said, "Yes, she did....""Well, then, tell your mother that there
are no baby planes because Southwest always pulls out on time. Have your
mother explain that to you."
Mom says,
"Touché "