Have you ever known anyone who takes to the pipe so much that their mind becomes so permanently warped that there's just no coming back. They live in a world of their own creation that bears no resemblance to the world as it exist for the rest of the world. Rambling on in a nonsensical manner as to make no sense to anyone but themselves.

I suppose one should have feelings of pity for the warped brained but they did it to themselves.

puff, puff, puff, another bowl...