A long time ago I saved a possible B763 tail-strike on a landing with a pampered Vietnamese Captain. I just put my hand behind the levers to let him know that Vref -7 is not a healthy speed at 100'... Cost me USD 10000 - 10 months delayed command...
But Guys...
1) Da Capt is in Charge
2) If in doubt hav a betta look at the line above
3) If u still in doubt have another look etc.
Ah, by the way he was the Fleet Komisar (dont know how u spell it in eng). No jokes, they still hav them there...