Jason Duke tells everyone to Fuck The World over at Pulp Pusher.
I'm guessing the story is relatively new (it still has that tag on it).
Jason weaves a hell of a tale that has the narrator growing right before our eyes. He's definitely not the same guy at the end of the story that he is at the beginning.
This is a great story and you owe it to yourself to read it if you haven't. And if you have, read it again.