"...Listen, while we're speaking candidly I do have one somewhat awkward but not like, bad, question." It still takes River a moment of staring out into the rain to work up to it. "...What...language...are we speaking? This ain't either of the ones I speak at home, and I can still speak 'em here, so...?"

It's not that River's complaining about the white-haired lady installing a convenience, but she didn't get this far by not being curious.