"Just the fact that this is an antibiotic." Pretty straightforward, she figures. Not that she's got any plans to explain how she knows that. "But it's not like you grabbed the wrong bottle, is it?"

Her brow creases, just slightly, as she talks - this time less out of irritation than, believe it or not, concern. Joker really wanted this, and that amount of drive to get hold of a bottle of antibiotics is a little worrying.