i have to agree with slim20 ignorance is definately bliss!!
A little knowledge is dangerous. Ive had the great pleasure of having to straghten out a few PAX.
Favourite example: PAX "what is that coast line ahead?"
(after asking Cpt) SA " the French coast Nice and Cannes ahead
PAX: "No it isnt it cant be"
SA "Madam if the captain says its the french coast line then you better hope it is"