[He seems to think about that a moment.] So it’s a lot like the fluids in our lines then. Essential to keep it inside where it belongs.

[He gives her a little smile.] So no samples of blood. [Got it, he doesn’t want to kill you, or anyone else, for science.]

So if you lose any of it you could die? [This upsets him a bit. No offense, Sam, but you humans are kind of fragile...]