There's nothing worse than sitting locked up in a cell with the Doctor, knowing that there's nothing you can do to get out of it because you've already tried everything.

When Cliff told Jo that the Prime Minister was going to show the world that aliens existed, all she said was, "That'll be nice," and he laughed and kissed her.

I can't help thinking that if I just knew Mike was in love with me at the time I'd have done things differently, and yet being able to look back on that time I can't say what it is that I could have done.