Fortunately for Ginko, the same intoxication which caused those words to slip right on out is what keeps Joker from really focusing on the lack of reaction he's getting. Instead, he just grunts as he's rearranged, and fumbles a little as he braces his arm against the outside of the tub. Or, well, tries to. It's a bit of a struggle.

"Shi- sorry. S'difficult. God..." His eyes open up just a sliver again. "What was in that swill?"