"The cops are spread pretty thin. It just isn't practical to call the cops for every noise. That said, I must admit that I once called them for a stray noise. (For brevity I won't go into the story.) Often, we just aren't sure what the noise was. Stray animals? Prowler? Other? Sometimes we have to check it out for ourselves. If we do decide to see what it is, we have to go out prepared for the worst and hoping for the best. Just as buying a gun is an advance action of preparing for the worst, there are some other things that can be done too.
Install some flood lights that can be turned on from inside the house. Set them so that all outside areas can be lit up. Normally, just having lights suddenly turn on is enough to send most criminals running. But not always.
Have a peephole in the door. Look though it before opening the door. Sounds simple, but most homes still don't have a peephole.
Hyperbright LED spotlights are available for about $30.00. They are rechargable. Handy for lots of purposes. Here is mine. It is smaller than the picture appears. When I hold it, my little finer is partially below the handle. The beam is dazzlingly bright, and at 150 feet still throws a usable beam. Hold it at an arm's length to check out areas that aren't lit up by the houseflood lights.
Dogs are a different question. They can definately be a help, but they are expensive and require time and loving attention. And they can tie you down.
Weapons choice is problematic. I would prefer a tactical shotgun, but if I have to use one hand for the light then I will have to use a handgun. But I am not hunting for BGs, hoping to bag one. The purpose of the gun is to give me a chance if everything goes bad. If I do see someone, I will retreat if possible to inside the house.
If you are able to confirm that someone is outside without confronting them, then don't confront them. It is time to retreat and call the police. Your objective is to protect your family and yourself. Stuff can be replaced. You have no guarantees that you will win a gunfight. Even a fatally wounded BG can kill you with a lucky shot from his .25 as he spasms.
For a gunhead, I'm not sounding very macho, am I? Talking about retreating from BGs and all that. That's OK. I want my family and myself alive and unhurt when it is over.
From inside your residence take a position - preplanned - and cover the entry zones. There is a reason why cops and military call doors "dead zones" or "death frames" and names like that. My choice for that weapon would be a 12ga short barreled pump, with a .45 for back-up. Stay on the phone to the cops until they get there, even if you have to start shooting. The 9-11 recording will become evidence to establish what happened. But stay on that phone so the dispatcher can tell you when the cops are there, just in case you don't see them.
If the BG busts into the house, then my state's Castle Doctrine comes into play. No more retreat. He has just stepped into the "kill zone" and I will be firing the shotgun rapid fire.
The fact is, almost all the time the noise will turn out to have been nothing but a stray animal. And that is the reason why you didn't call the cops at first, because you didn't want to waste their time on nothing. You are going outside to make sure that it is a nothing, expecting it to be a nothing, but just in case it is a nightmare you go prepared."
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