I know my job, and do my job well. Could always do better though, and constantly work to do just that. I would also never look at someone and say "do your job", regardless of seat. Is that like a captain ego thing that some of you guys have? Should I stare at you when you miss something and wait for you to catch it? Let me guess...that NEVER happens? You guys are probably the ones who yell at FAs, gate agents and rampers too.