Sonia scoffs at prohibitions, because as far as she's concerned, there will always be prohibitions when it comes to Barrayar and her particular thirsts. If she keeps letting that stop her, she's quite convinced she'll die of it.

"Patriotism and courage," Sonia repeats in vague amusement, propping her chin on her hand. She isn't disagreeing. "Ah, but I hear the mountain folk are infamous for their drinking."

A terrible double entendre, but difficult to resist.