"I'm afraid to ask what it'll cost me." There's a touch of appreciation in the jibe - South taking an advantage and abusing the hell out of it is one of those things that's knit into his bones by now, sure as his sense of gravity. It why he hasn't even had it in himself to be upset, up until now. Restless, sure, cagey as anything. But it wouldn't be his sister if she didn't wring that upper hand dry before finally dropping back down to his level.