Pre-mature twist of pattern

C: Thank you. (wondering why D was still in the office)
D: You're welcome.
C: Thank you very much.
D: Are you happy?
C: Yes, of course!
D: Really?
C: Yes, but I haven't seen the amount (ok ok, read the amount)
D: No? (looked puzzled)
C: No.
D: Really? You didn't read it?
C: Nup.
D: Then give it to me.
C: Ha, I wanna leave this chance to my wife.
D: O, really?! O.K.... (the A of C's VAK ceased to function for a little while)
D: Remember you are required to add a new objective this year - to walk in a straight line, and in a real straight line.
C: I'm fine. Don't worry...
C: Um, Actually, I'd just started quited drinking (whatever grammatical error you find here)
D: ? (a pause)
D: Do you drink?
C: ... (a pause)
C: Nup. I never drink.
D: ... Haha, you never drink.
C: Alright, thank you anyway. (hand waving)
D: Bye.
C: See ya.