(From a Usenet joke group conversation):

Q: What did the inflatable school counsellor at Inflatable High School say to the inflatable pupil when he took him into his inflatable office for a lecture??

A: John,your behahiour today has been totally disappointing!!! By bringing that thumbtack into this school you have let not only your friends and classmates down but you have let the whole SCHOOL down.!!! But most importantly, what you are going to have to live with is the fact that, this time, you have even let YOURSELF down!!!!!

~~~

But I thought to air is human. Now I’m confused.

Rules that can’t be bent are dirigible kind.

Dirigible: Inflated male cow.

It don’t mean inflated. It means capable of being steered or directed. So even your car is dirigible – unless the steering gear gets stuck, but that can be a matter of a pinion.