@Carerx
You misunderstood. I understand why he would like to have them, I came to the same conclusion as you, but he proves both of us wrong by simply opening them when he hears something strange outside. What's the point of a defensive mechanism if you disable it the moment you notice potential danger? That's like going everywhere with an umbrella, but then purposefully leaving it at home the moment you see rain clouds approaching and hear thunder.
Also if hang on to your seat, you're about to go on a wild ride in a few more chapters.