Really it shoudl be a highly regarded author to belong in a thread like this.
So my vote goes for D.H.Lawrence. Anything by D.H.Lawrence. Very versatile lad - fiction, non-fiction, poetry, paintings. All destined for Room 101 (where you find the worst things in the world).
And I don't like the way he heaved a log of wood at that inoffensive snake, once its back was turned, and then wrote a poem about it.