[He's losing his attention, and Dick isn't sure if Angua getting it is a good thing at all. He's still not sure what the drug really does to people, what the potential side effects could be, and he didn't want this turning into some situation that put her in danger, too.

And he really needed to get a blood sample.]

George, [he said carefully, loud enough to hopefully get his attention back, pulling out a kit from his utility belt.] How about it, buddy? It won't hurt, I just need a little bit so we can figure out how to help you, and anyone else who gets hit with this stuff. Please?