WelshCityFlyer
It really does not get brownie points to wind people up or be smart when it comes to safety on board the aircraft.
The fact that xtc reads up for 10 minutes before briefing merely proves the point that SEP questions are not easy and briefings boring!
After a few years flying, most crew think they know it all - give it 10 more and you really do have an idea of what is going on and have the ability to learn more as a result of dealing with people and situations.
It may not matter if you know the red .. but it matters a lot to the first class passengers who pay for the aircraft to get from A to B. Particularly if you like to get the best airline service awards.