Just for the record

I would never, ever, want to be kept alive by any artificial means.

Remember the episode of the twilight zone when the guy gets in a car wreck (or something)--his eyes are open, he can see, but he can't move or speak. I think he eventually gets buried, all the while screaming in his head "I'm not dead."

Though I can't know for sure, I can only imagine that that's what it would be like if you lived your life on a respirator or a feeding tube.