nutty times
some may recall a united 737 captain many years ago, so long ago they had a second officer on the 737(no lie). anyway, he was making sixty degree banks and other odd things.
the other two pilots got everything down in one piece and it turned out the guy had a brain tumor...and it was subtle incapacitation.
this of course was less subtle.
going back to plato's republic, a chair is anot a chair if you can't sit in it...an ear tht does not hear is not an ear, and a captain who doesn't take care of everyone else ship included is not a captain.