I have encountered numerous FFers in my travels (alas, none from this forum), and to a man/woman, all have been very gracious and civil.
I suspect it is because the FF is aware of the various things that CAN go wrong, so are (1) more understanding when they do, and (2) more appreciative of efforts made on their behalf by others.
I'm sure there is the "I'm-the-center-of-the-universe" types, but I've been lucky enough to avoid them as far as FFers go.
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"I will not be pushed, filed, stamped, indexed, briefed, debriefed or numbered. My life is my own."