I almost went off on our FA today when she thought that all FO's did was sit and observe. She was also shocked when she learned that there was previous training involved in getting hired as a FO. She thought that I just woke up one day, decided to be a pilot, applied, and got hired.
For all the work we do to get to a 121 or 135 it suprised me to see such ignorance from another "crew" member.