We'll all plunge to our deaths. See? I've thought about it! [examines the door] Ah, the security protocols are still live. There's no way to override them; it's impossible!
[strained] Father Octavian, when the Doctor's in the room, your one and only 'mission' is to keep him alive long enough to get everyone else home! And trust me, it's not easy! Now if he's dead back there, I'll never forgive myself. And if he's alive, I'll never forgive him. [Pause] And Doctor, you're standing right behind me, aren't you?