METACRISIS DOCTOR: No, no, no, no, no. I'm unique. Never been another like me. Because all that regeneration energy went into the hand. Look at my hand. I love that hand. But then you touched it. Wham! Shush. Instantaneous biological metacrisis. I grew out of you. Still, could be worse.

DONNA: Oi, watch it, spaceman.

METACRISIS DOCTOR: Oi, watch it, Earth girl. Ooo. I sound like you. I sound all, all sort of rough.

DONNA: Oi!

METACRISIS DOCTOR: Oi!

DONNA: Oi!

METACRISIS DOCTOR: Spanners. Shush. I must have picked up a bit of your voice, that's all. Is it? Did I? No. Oh, you are kidding me. No way. One heart. I've only got one heart. This body has got only one heart.

DONNA: What, like you're human?

METACRISIS DOCTOR: Oh, that's disgusting.