"I always tried protecting you, keep you safe. Dad didn't even have to tell me. It's always been my responsibility, you know? It's like I had one job, I had 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. Y'know I let dad down,  and now I guess I'm 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?"

Dean Winchester