Dean, Sam and others in “Unfinished Business”

Dean

That's just great. This is stupid. Our quality of life is crap. We got Purgatory's least wanted everywhere, and we're on our third "The World's Screwed" issue in, what, three years? We've steered the bus away from the cliff twice already.

Sam

Someone's got to do it.

Dean

What if the bus wants to go over the cliff?

Sam

You think the world wants to end?

Dean

I think that if we didn't take its belt and all its pens away each year that, yeah, the whole enchilada woulda offed itself already.

Bobby

Stop trying to wrestle with the big picture, son. You're gonna hurt your head.