You've probably seen these before but I thought it might amuse you - this was emailed to me by a non-aviation minded friend.

Airplanes can kill you quickly; a woman takes her time.
Airplanes can be turned on by a flick of a switch.
Airplanes don't get mad if you 'touch and go.'
Airplanes don't object to a preflight inspection.
Airplanes come with manuals to explain their operation.
Airplanes have strict weight and balance limits.
Airplanes can be flown any time of the month.
Airplanes don't come with in-laws.
Airplanes don't care about how many other airplanes you have flown.
Airplanes and pilots both arrive at the same time.
Airplanes don't mind if you look at other airplanes.
Airplanes don't mind if you buy airplane magazines.
Airplanes expect to be tied down
Airplanes don't comment on your piloting skills.
Airplanes don't try and make you crash and burn.
Airplanes don't whine unless something is really wrong.
When airplanes go quiet, it's a bad thing.