[Sitting still and behaving is indeed the worst, so Firo smiles faintly when she breaks the quiet, even if he has to go and be a bit of a sarcastic brat first:]

That's the most pleasant conversation starter you could think of?

[Oh, well, he's going to answer anyway.]

I haven't. ...But I knew a guy who got lit on fire--do you think it's anything alike?

["Knew" as in "now I have his awful memories," but he doesn't need to get into those details.]