Externalist views struggle to capture the intuition that even liable people are wronged by being knowingly unnecessarily harmed. Externalists can grant only that unnecessary force is impersonally wrong, and that harming Gunman is all-things-considered impermissible in light of this impersonal wrong. This implication looks especially worrying when it comes to unnecessarily harming non-culpable threateners, such as Homeowner in Mistake, who threatens Victim only because she reasonably believes that Victim poses a lethal unjust threat to her. If Victim can save his own life simply by stepping aside, rather than killing Homeowner, he seems to wrong Homeowner if he instead decides to kill Homeowner as a means of saving his own life. Homeowner seems to have a legitimate complaint against Victim. We might also think that she (or her beneficiaries) are entitled to compensation.