Really, Mina had a hard time caring about anyone outside of her small circle of friends. She was a doctor. She had no great love for human suffering, of course. But people suffered every day. And she couldn't prevent all of it.

If you cared too much about every little thing, you would lose your mind, after all.

"Donna's alive and well," she said. "That seems like something to celebrate. Worth quite a lot more than a couple of smiles, I think."