Thanks for sharing Djinn. I especially like the piece on 'Air travel.'
Reminds me of two places I have always felt like raising my hand to make a learned contribution:
a) In a plane,during that useless drill about masks and flotation devices (planes are made to fly not float,you idiot!).
b) And of course in church when the preacher is foaming at the mouth about morality et al. Er,excuse me Pastor,but did you know that your fly is open?
"The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth." (Niels Bohr)