Wow ! Do you have a grad degree ? And are there more traits that display this kind of instability ? <| sep |> Can confirm einthusan for the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good to the movie with a good <| sep |> We don ' t see someone using it on an armored foe in HP but we do know wizards fought in medieval wars so they presumably know the effects of armor and shields vs the killing curse . If they worked , wizards would use them in wars in the modern day , but they didn ' t in HP . It seems to be more about the killing curse finding a target . It doesn ' t damage the actual body whatsoever unless it was cast improperly like with Harry ' s scar so I don ' t think protecting the physical body with armor would help . It ' s only been blocked before by large objects that weren ' t associated with the target . It doesn ' t go through walls , for example .