Here's a couple for you:
"If women were meant to fly, the sky would be pink not blue."
"Helicopters: 10,0000 bits of metal fatigue rotating around an oil leak."
And to finish off, a little exchange in the cockpit after the C.P.'s ADI had fallen over on taxi:
Captain: "....it says in here (in the M.E.L.), 'approved for single pilot VFR ops',... your gunna have to get out"
Unfortunately he was very serious.
