He doesn't actually have a pumpkin for a head - it's just a facial deformation which occured during a nuclear reactor accident. His brain was subject to a type of gamma ray which affected certain polarised areas of his neural pathways. His grasp of right and wrong were effectively inverted - causing him to react in the worst way possible to absolutely everything.
You find this out when the scientist and his military buddy go to a pond near the reactor where they take samples of fish affected by the radiation there.
|