This same type of thing was happening here a couple of years ago. About 3 homes within a block or two of our home were hit this way.
I can view my front door, back door and garage door, from the tv in our bedroom, or the tv in the den. One quick flip of a button will allow me to see who is at the door. It would only take about 10 - 20 seconds to view the tv, and pick a pistol or two out of the safe if I wasn't already dressed for the day and was still in bed. By the time they started to bust through the storm door to get access to the front door, I am pretty sure they would get the message that they weren't welcome in my home.
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