Richard H. 'Richie' Ryan: What about us, Mac? You and me?
Duncan 'Mac: You screwed up, Rich. And it happens to all of us.
Richard H. 'Richie' Ryan: Oh, man. I swear, if I live to be a thousand, I'm still gonna see that guy coming at me again and again. Just wondering if there was something I could have done different.
Duncan 'Mac: I know. And he won't be the last. They all stay with you.
Richard H. 'Richie' Ryan: I didn't know you believe in ghosts.
Duncan 'Mac: I believe in the kind you carry with you. Everyone you've loved and everyone you've killed. They never leave you. When you stop feeling and you stop hurting, that's when you're dead inside. And that, my friend, is when I'll worry about you.