Dorothy didn't actually 'meet' the wicked witch, the house landed on the witch... which is entirely the witches fault for not getting out of the way of a HOUSE.... saying this, is like blaming the child when a mother dies in childbirth.
Transported to a surreal landscape, a young girl kills the first person she meets; Transported to a surreal landscape, a young girl kills the first person she meets; and then teams up with three strangers to kill again; and then teams up with three strangers to kill again