lewd and dark
Death is pretty vulgar. I could never become a killer, except maybe for an exceptionally valid political cause, because after my dad died I made an explicit philosophical point, for my own sanity, of becoming really bored with death.
Turning someone totally alien and incomprehensible, on the other hand... corrosive to whatever stifling social circumstances forced the misery of a human superego onto them...
Never be misled. The original lavavixen Kincaid was a supervillain.