A prisoner who is desperate to get out of jail has been teaming with his doctor and has been in & out of the hospital on some pretext of illness. He is now in one of such visits and very desperate to get out of jail permanently, tells the doctor, "Look here, doc! You've already removed my spleen, tonsils, adenoids, and one of my kidneys. I only came to see if you could get me out of this place!"
To which the doctor calmly replies, "I am - bit by bit".