Sam Winchester: Like, if, for some reason, he were out of commission.
Dean Winchester: Which is weird, considering that he's supposed to be untouchable, unless he is not... untouchable.
Sam Winchester: So, he has an Achilles heel.
Dean Winchester: Well... I'm saying he has a weak spot.
Sam Winchester: Yeah, that's... that's...
Sam Winchester: Did I die?
Dean Winchester: Oh, come on.
Sam Winchester: Did you sell your soul for me? Like Dad did for you?
Dean Winchester: Come on. No.
Sam Winchester: Tell me the truth. Dean, tell me the truth.
Dean Winchester: Sam.
Sam Winchester: How long you get?
Dean Winchester: One year. I got one year.
Sam Winchester: You shouldn't have done that. How could you do that?
Dean Winchester: Don't get mad at me. Don't you do that. I had to. I had to look out for you. That's my job.
Sam Winchester: And what do you think my job is?
Dean Winchester: What?
Sam Winchester: You saved my life over and over. I mean, you sacrifice everything for me. Don't you think I'd do the same for you? You're my big brother. There's nothing I wouldn't do for you. And I don't care what it takes. I'm gonna get you out of this. Guess I gotta save your ass for a change.
(After Dean escapes dream reality created by a Djinn...)
Sam Winchester: I'm glad you dug yourself out, Dean. Most people wouldn't have had the strength. They would have stayed.
Dean Winchester: Yeah. Lucky me. I gotta tell you, though, man. You had Jess. Mom was gonna have grandkids.
Sam Winchester: Yeah, but, Dean, it wasn't real.
Dean Winchester: I know. But I wanted to stay. I wanted to stay so bad. I mean, ever since Dad... all I can think about is how much this job's cost us. We've lost so much. We've... sacrificed so much...
Sam Winchester: But people are alive because of you. It's worth it, Dean. It is. It's not fair. And, you know, it hurts like hell, but it's worth it.
Bobby Singer: You got a trickster on your hands.
Dean Winchester: That's what I thought.
Sam Winchester: What? No you didn't...
Bobby Singer: Well, I gotta tell you... you guys were the biggest clue.
Sam Winchester: What do you mean?
Bobby Singer: These things create chaos and mischief as easy as breathing. And it's got you so turned around... and at each other's throats, you can't even think straight. The laptop. The tires. It knows you're onto him. And it's been playing you like fiddles.
Security guard: Alrighty. You guys need anything else?
Sam Winchester: No, we'll be in and out before you know it. Just a routine check.
Security guard: Okey-dokey.
Dean Winchester: I like him. He says okey-dokey
Sam Winchester: What if he's the shifter?
Dean Winchester: Then we follow him home and put a silver bullet through his chest plate.