[ It makes sense — he understands the words, the theory — but the context is all wrong. He's never heard anyone talk that way about a body, adjusting flow and manipulating vectors for blood instead or water or some other substance. He talks about this — first aid, as if it weren't utterly disconnected to every kind of first aid Gustave has ever experienced or learned — the way Gustave himself talks about the pipes and plumbing of Lumiere, the energy requirements of the shield dome.

It's almost enough to distract him from the distinct discomfort of having those fingers in his chest. Almost.

But there are still fingers in his chest and so he nods tightly, does his best to calm his breathing, his heartrate, while his mind whirs. When he speaks, his voice is a little tight, but he tries for conversational. ]

Handy. I could have used someone like you on the team back home to help keep the city's infrastructure running smoothly.