Lost, Season 6

The Man in Black:
You referred to me as a dead man. I am not a dead man. I know what you're feeling, Kate. I know what you're going through.

Kate Austen:
And how do you know that?

The Man in Black:
Because... my mother was crazy. Long time ago, before I... looked like this... I had a mother, just like everyone. She was a very disturbed woman. And, as a result of that, I had some growing pains. Problems that I'm still trying to work my way through. Problems that could have been avoided had things been different.

Kate Austen:
Why are you telling me this?

The Man in Black:
Because now Aaron has a crazy mother too.