They can't change (...). But I do believe they have a beast within. In some it's buried so deep they'll never feel it; in others it stirs, and if a person can't give it a safe voice it warps and rots and breaks out in evil ways. They may not be able to change, but they still can be the beast of their own nightmares. It's our blessing that we can exorcise those demons. Sometimes it's our curse.