[ Pause. What's a way to say "may I have a sample of your blood" that doesn't raise alarm bells?

A very quick assessment tells Hilbert that there isn't one. ]

Who removes it these days, Gaius? Suspect you should ask him. [ A pause before, ] Unless you want to continue observations, of course. Plenty of hypotheses about where your blood combination might go.

[ He hates how hopeful he sounds for something that Hilbert thinks might not happen. ]