Originally Posted by
ICUROOK
Right, because unlike any of those examples you stated it is perfectly normal for an FO to let another pilot call them Captain. You must have been one of those FO assistant Chief pilot tools that thought everyone should address them as “Sir”.
Still find it weird that you would address someone as "captain" who did not introduce themself as such. If that makes me the weirdo toolbag, then so be it. I've been called worse by better.