[ He nods, quiet for once, actually paying attention to the way she's doing it before he starts to chop - and it's obvious he's got at least some practice with it because he's not totally helpless ]

I know you saw them.

I'm not stupid, I can tell you didn't just happen to show up the exact moment they finished showing. That's why I'm thanking you.

You're nicer than you want people to see.