Rose: Who are you then? Who's that lot down there? [The Doctor ignores her] I said who are they?! The Doctor: They're made of plastic. Living plastic creatures. They're being controlled by a relay device on the roof. Which would be a great big problem if- [he pulls a bleeping bomb out of his coat] -I didn't have this. So I'm gonna go upstairs and blow it up. And I might well die in the process. But don't worry about me, no. You go home, go on! Go and have your lovely beans on toast. [suddenly serious] Don't tell anyone about this 'cos if you do, you'll get them killed. [closes the door] [opens it again] I'm The Doctor, by the way. What's your name? Rose: Rose. The Doctor: Nice to meet you, Rose. [holds up the bomb, shaking it slightly while grinning.] Run for your life!