Originally Posted by
Rather B Fishin
That's an EASY one. First time he makes an uncommanded configuration change or flight control input you throw your hands in the air and say "Your airplane Captain".
An FO friend at another airline did almost that once. As soon as they landed, he briefed the CA that he (the CA) would be the PF for the rest of the trip because clearly he was nervous with other people flying and wanted everything done his way. My friend said something like "I'm a lot younger than you and will get plenty of landings in my career; I don't need these few for currency or proficiency, so please with my blessings take them all". He claimed the rest of the trip went great.
I'm more of a believer in the thick skin approach to these things. I'll waste a little more fuel than I would otherwise have burned if the other pilot is obviously fidgety about the config even though I know its going well. I hate dragging it in, but I'd rather do that than shut the other pilot out of it and potentially set up an IGYYSOB situation. However if I then get lectured as to why I messed up when I didn't, then there's going to be some learning that occurs with one of us.