Rachael: Do you like our owl? Deckard: It's artificial? Rachael: Of course it is. Deckard: Must be expensive. Rachael: Very. I'm Rachael. Deckard: Deckard. Rachael: It seems you feel our work is not of benefit to the public. Deckard: Replicants are like any other machine: they're either a benefit or a hazard. If they're a benefit, it's not my problem. Rachael: May I ask you a personal question? Deckard: Sure. Rachael: Have you ever retired a human by mistake? Deckard: No. Rachael: But in your position that is a risk... Tyrell: [Offscreen]Is this to be an empathy test? [Tyrell appears at the other end of the room, walks towards the two] Tyrell: Capillary dilation of the so-called blush response...fluctuation of the pupil...involuntary dilation of the iris. Deckard: We call it Voight-Kampff for short. Rachael: Mr. Deckard, Dr. Eldon Tyrell. Tyrell: Demonstrate it. I want to see it work. Deckard: Where's the subject? Tyrell: I want to see it work on a person. I want to see a negative before I provide you with a positive. Deckard: What's that going to prove? Tyrell: [Smiling] Indulge me. Deckard: On you? Tyrell: [Nods at Rachael] Try her.