"Darcy made him bleed." Clarke hadn't watched the incident all that closely, doesn't know exactly what transpired between the two of them past what could be gleaned from across the room, but they'd talked about it since and if he's inclined to play favorites "— we could ask if she'd be willing to try to do it again, and maybe this time get a sample."

And after a slight pause, because this is a totally normal thing to forget you've had stashed away in your bureau since your first month on board this hellscape of a ship: "I have some of Friday's blood on a napkin, if that'd do any good."