And unless you fancy making an arse out of yourself in front of the Dark Lord, I suggest you have more proof than a fucking assumption.

*He's trying not to seem bothered. It's far easier to reduce this conversation to baseless accusations and Barty's typical weirdness. But there is something deep in the recesses of his consciousness that doesn't want to throw out Barty's barmy ramblings just yet. It wants to hold onto it for a bit, like a patron of a restaurant making a noise of protest before a waiter removes their plate. His mind is "still working on it" and wants to continue to nibble on insignificant bits of food left on this figurative plate.*

Seriously, when does that potion quit? This is just weird. What the hell possessed you to go over there anyway, looking like that?