When you set yourself up . . .

A mother and her young son were flying Virgin Blue from Brisbane to Melbourne. 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 flight attendant.

So the boy 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 flight attendant responded, "Did your mother tell you to ask me?"

The boy admitted that this was the case.

"Well, then, tell your mother that there are no baby planes because Virgin Blue always pulls out on time. Ask your mother to explain that to you."