[The syringe gun draws a cringe when he sees it pressed up against the zealot's forehead. The report on Tesla did not include the details of what tools were used in the experiments on her, but it's easy to picture the injector as among them now; he has to push down that swell of anxiety and fear. But he has not seen the people operating this horrible place turn on each other like this, and so Vash has to wonder if that outfit isn't stolen, especially with how poorly it fits.]

You already have your freedom, don't you? It's a waste of time to chase after revenge in here. Making them suffer won't undo the pain you've suffered here.

[He's running off an assumption, admittedly. His own sense of mercy may well come back to bite him here, if the other man is not a Sleeper after all.]