In THY all First Officer are called "Captains". The actual Captains are Commanders.
I've heard many a First Officer when asked if they are the Captain, they proudly say "Yes, I am THE Captain".
I believe it's a hang over from the Military guys years ago, that were insulted to be called a First Officer or Copilot when they joined the company. This must have made them happy. That's just my opinion/guess, not based on actual facts.
