Door and Window Defense The big difference between door and window defense and an interior barrier defense is the amount of preparation or warning time. The only time you should use a spray defense to stop an intruder from coming through a door or window is when the intruder is already in and you’re in imminent danger. A good example would be waking up to find an intruder climbing in through your bedroom window or actually in … Continue reading Tactical Use Of Pepper Spray – Residential Door And Window