I fly a single pilot jet with passengers in the back under 135. Most of the time, I have a "first officer". He's typed and current.

I don't call myself Captain.

...I call myself:

Supreme-Master of the Universe-Admiral-Commandant-Lord-Baron von Minitour

That's what I'm putting on my business cards.

For short, you can refer to me as the Lord.

[serious]
Guys...does it matter?

If you're assigned as the PIC, you're the PIC. Whether they call you "Captain", "Sir", "PIC", "Pilot", "Yo", "Dude" or "Hey You", it really doesn't matter. You're still the PIC.
[/serious]

I had a TSA guy yesterday call me "captain". I quickly told him that he is never to refer to me as that. He is to call me Supreme-Master of the Universe-Admiral-Commandant-Lord-Baron von Minitour. And don't you be forgetting it!

-Lord