Albert Fish

Albert Fish would stick needles into his pelvis when he was masturbating. He would stick them so deep sometimes they would get stuck. When he told this to police, they didn't believe him until they saw the x-ray of needles still embedded in his pelvis. He had children of his own, and was by all accounts a very kind and gentle father, and never even raised a hand on his own kids. He cooked and ate a little girl once and then sent a letter to her parents about what she tasted like.