(Sam died and Dean is refusing to bury or burn him...)

Dean Winchester (to Sam): You know, when we were little... and you couldn't have been more than 5... you just started asking questions. How come we didn't have a mom? Why do we always have to move around? Where'd Dad go? He'd take off for days at a time. I remember I begged you, "Quit asking, Sammy. Man, you don't wanna know." I just wanted you to be a kid. Just for a little while longer. I always tried to protect you. Keep you safe. Dad didn't even have to tell me. It was just always my responsibility, you know? It's like I had one job. That one job. And I screwed it up. I blew it. And for that, I'm sorry. I guess that's what I do. I let down the people I love. I let Dad down. And now, I guess I'm just supposed to let you down too? How can I? How am I supposed to live with that? What am I supposed to do? Sammy. What am I supposed to do? What am I supposed to do!?