Dr. Who: [the Doctor is thinking of an idea of getting inside the TARDIS] Yes.
Jamie: Have you thought up some clever plan, Doctor?
Dr. Who: Yes, Jamie, I believe I have.
Jamie: What are you going to do?
Dr. Who: Bung a rock at it.
Jamie: Oh be serious, Doctor!
Dr. Who: Jamie, I am.
Jamie: Hey no, Doctor!
Dr. Who: [the Doctor bungs a rock at it, however the Yeti does not react] There you are, you see? Just as I thought. It can't see and it can't feel. Come on.
Jamie: Don't be daft, Doctor.
Dr. Who: Well it's quite all right, Jamie. It's like those three back there, it's either switched off or not receiving. Come along.
Jamie: Are you sure it's quite safe?
Dr. Who: Well, quite frankly no, Jamie. But there's only one way of finding out.
[the Doctor starts to look inside the creature's centre for its flap]
Jamie: Don't, Doctor, you might switch it on.
Dr. Who: No I don't think so, Jamie. There, just as I thought. Now then.
[He gets the flap open]
Dr. Who: Now, Jamie, will you hold this flap open for me please? Thank you.
[He starts to take the control unit from its chest with a screwdriver]
Jamie: Hey you're taking an awful risk, Doctor.
Dr. Who: [removes the Yeti's sphere] Well I'm glad that's over. Catch!
[He throws it at Jamie who catches it]
Jamie: Hey I just thought of something, Doctor. The man that made these robots is very clever, right?
Dr. Who: Yes.
Jamie: And yet we were able to walk right up to it and put it out of action just like that!
Dr. Who: You mean why didn't they build in some sort of protective device?
Jamie: Aye.
Dr. Who: Well perhaps they didn't think it was necessary. I mean look at him. Would you walk up to a creature like that with just a screwdriver in your hand?
Jamie: No, I would not.
Dr. Who: No, there you are. I'm really rather pleased with myself.