The Dark Knight : I See The Funny Side!
Joker: So I had a wife. She was beautiful, like you. Who tells me I worry too much. Who tells me I ought to smile more. Who gambles and gets in deep with the sharks. One day, they carve her face. And we have no money for surgeries. She can’t take it. I just want to see her smile again. I just want her to know that I don’t care about the scars. So… I stick a razor in my mouth and do this…to myself. And you know what? She can’t stand the sight of me! She leaves. Now I see the funny side. Now I’m always smiling!