I know others perceive me as a monster. And, as for feeling fear, it was hypnoconditioned out of me during my training as a Legiones Astartes. Also, the genehancing techniques used to make a warrior like myself remove our physiological fear response more or less entirely. We can still produce kill-hormones and adrenaline rushes for battle, but we don't have a flight response short-circuiting our logic when we fight.