Willhelm got a little agitated. This person is underestimating him. Right now he could draw his blade and lope off her head however that would be wrong since she has not done anything towards him. He says to her " Do not miss. Also I am not with the brotherhood. " He begins to step up to the room. His plan is to approach the robot hoping to get close before it begins to threaten to kill him. Who knows maybe he will get lucky and they will let him through. He is still on his guard in case they pull a fast one.