Nothing is ever your fault, is it, O'Brien? It's always someone else's. You're just talking; they're the ones who are being weak and sensitive and individualist and it has nothing to do with you, does it? Next thing you're going to tell me is that someone bloody well held a gun to your head and said please, O'Brien, be an arse to me! You couldn't possibly simply be a bastard to someone just because it makes you feel better, could you? No, you simply can't help how people perceive you and it's never, ever your fault.
Private - and I'm afraid this is the start of Una finally losing her shit.