My door has a peephole and chainlock. I always look. If I don't know who I see, and it ain't wearing a badge, I don't answer. The door is fairly solid and has two locks, plus the door chain. It will take a home invader a few minutes to bust in. I keep a speargun near the door, and my shinken near the bed. In the time it takes the thug to kick in my door, the speargun will be locked and loaded, ready to greet him. My sword is for any of his backup.