Dg800 wrote; "The way I understood it is that the OP was only irritated by the know-it-all attitude he got from the FA in exchange for his open and frank attitude"
That depends on the delivery and the manner in which the point was communicated in the first instance, not to mention motive.
UPP - the last line of your of your second post probably sums up the manner in which you view and possible treat your colleagues. As a suggestion - I'd take your own food to work!!!