Can we have a break with this "Southwest" aircraft joke?

A mother and her young son were flying Southwest Airlines from Kansas

City to Chicago . The little boy (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

flight attendant.

So the boy went down the aisle and asked the flight attendant, "If

big dogs have baby dogs and big cats have baby cats, why don't big

planes have baby planes?"

The busy flight attendant smiled and said, "Did your mother tell you

to ask me?"

The boy said, "Yes, she did."

"'Well, then, you go and tell your mother that there are no baby

planes because Southwest always pulls out on time. Have your mother

explain that to you."