one.

R: "our baby fell out of the window, you thought that his head would be split. but good luck was with us that morning..."
S: "his head fell in a pile of shaving cream."
R: "it isn't his HEAD. it's just HE."
S: "but your head is a vital organ, with your heart!"
R: "not only his head fell in it, it was all of him."
S: "you can have your head isolated from your body. but you can't put your heart on a pillow."