Lost, Season 2

Desmond Hume:
Can I ask you a question, brother?

John Locke:
Absolutely.

Desmond Hume:
Is the reason you're letting that clock there run all the way down to the very last tick—is it because you need to look down the barrel of a gun to find out what you really believe, John?

John Locke:
I looked down the barrel of the gun and I believed. I thought it was my destiny to get into this place. And someone died—a kid. Because he was stupid enough to believe that I knew what I was talking about. And the night that he died for nothing, I was sitting right up there, all alone, beating my hand bloody against that stupid door—screaming to the heavens asking what I should do. And then a light went on. I thought it was a sign. But it wasn't a sign. Probably just you going to the bathroom.