The pilot had passed all the exams to become an officer in the Royal Air Force and was being congratulated by his commanding officer.
"Now all you need to know is the secret greeting between officers. It's quite easy to remember. The fisrt part is.. oh that thin transparent stuff planes fly through"
"Air?"
"That's right. And the second is the fuzzy stuff that grows out of your head"
"Hair?"
"Just so. And the third is the cave that bears live in"
"Lair?"
"Exactly. Now just string them together"
"Air Hair Lair"
"Perfect".



Rod