"The Wonderful Wizard of Oz" shows an early example of the problem: although the Tin Woodman does not die when his limbs and head are severed, the two wicked witches are killed (the Wicked Witch of the East could be explained that she was simply crushed and not really dead, but could not do anything anyway, and in "The Oz Odyssey", the Wicked Witch of the West comes back to life).