I did this movie, 'A Walk Among the Tombstones' - I truly play a horrible, horrible individual in that - and I would occasionally go to the theater and watch what people's responses were, and they would laugh. He makes jokes, and people would respond to him in a human way. Then I've really done my job if I've humanized a really horrible person.
If you want to really get in shape and get strong, there's these things called 'sleds.' You take a weighted sled, and you just push it across the floor, and then you drag it back. And, basically, if you do that for 20 minutes a day, you'll look like Arnold Schwarzenegger. If you put enough weight on it, it's the hardest thing in the world.