It's important to make sure that other players in your game aren't going to take it personally if you get into an argument with their character, while playing your character.

It's important, but it rarely happens. Maybe we could all learn something from Jim.

Wait...

Transcript

Padmé: ... So Zsa Zsa wasn't a Nazi either? Seriously?
GM: Can we get back to the game, please?
Anakin: Sure. We just need to settle how we're playing Anakin and Padmé from now on.
Padmé: Hang on... I've got this idea. It's a bit complicated... How can I explain this?
Padmé: We can argue when we pretend to be our characters, but still agree when we're really us.
Anakin: That sounds good.
Padmé: But it's all pretend. Except the real part.
Anakin: I get it.
Padmé: But... and I want to be totally clear about this—
Anakin: We fight in character but we're still okay in real life?
Padmé: Yes! Brilliant! That's even better!
Padmé: <ahem>
Padmé: You evil git, Anakin! You... you scallywag! You knave of ill repute! Keeper of unsavoury company!
Padmé: Why you stuck-up, half-witted, scruffy-looking nerf-herder!
Padmé: Wow, this is going to be awesome.