'But you didn't know when you called 'em names' is both entirely true, and a fact-checking call-out that Hannibal had genuinely thought he'd be able to sidestep with an eight year old. Hannibal still looks patiently, blankly not-guilty, even as he nods agreement to Triss's points.

She's more upset than he'd have guessed she would be. She hadn't reacted well at the time, of course, but Hannibal had assumed her fear would be the sort of short-lived overreaction that children have in droves. This lengthy attempt at telling him off isn't at all what he had expected, and that, more than the actual content of what she's saying, unbalances him.

Hannibal is silent for longer than he has been so far, wondering what angle to play now that she's discarded both previous attempts at deflecting her worry. Addressing it directly, perhaps? "I am sorry that I frightened you." Because that's what he thinks is at the root of this reprimand. "I would not have upset them if I truly believed they would be a danger to you."