FRANK: [watching a dog that has been hit by a car] There are two kinds of pain. The sort of pain that makes you strong. Or useless pain. The sort of pain that’s only suffering. I have no patience for useless things. Moments like this require someone who will act. To do the unpleasant thing. The necessary thing… [puts the dog out of its misery] There, no more pain.
House of Cards, con Kevin Spacey