Instead of falling onto his head and damaging his brain, the door fell just short of Hazama. Though it was startlingly close to hitting him. Four dismissed her IS and said, "Alright, what's going on in here? Who are you?" She asked, seeing Hazama.
@Trilby: Yay!
Also, as you've likely been able to tell, Silver doesn't seem to like it when characters die. So I doubt he'll let you kill Mia. Even though he totally has a back-up.
@Hatchy: I just imagined Hazama skipping through a field of flowers. And now I'm terrified.