Harry was in the wrong in this scenario. The rule specifically states that you can only be KOSed if you use the HS repeatedly without permission. In other words, if you use it for a second and the D says "Don't use it or KOS" and you then use it again, you can be KOSed.

Harry was in the wrong in this scenario. The rule specifically states that you can only be KOSed if you use the HS repeatedly without permission. In other words, if you use it for a second and the D says "Don't use it or KOS" and you then use it again, you can be KOSed.