That's so true Vickie....that's why I keep mine close to me at all times....they stay inside and not outside....they bark if they hear something outside to alert me! I did have an incident when I was single and at that time I had a Rottweiler and a huge Long Haired German Shepherd. There was a man who came to my house and was so drunk that he thought it was his house and started to beat on my door and screaming to let him in! He just kept hitting the front door (even though the dogs where barking like they were going to tear him to pieces). I WAS SO SCARED! I knew the dogs were trained and would attack (I am a retired dog trainer), but still the same....there's that fear of the reality of the moment. I had a cop that lived across the street and THANK GOD he was off duty that night. I called his wife on the phone and told her what was happening. Then I went and got my 9MM. So, the deal was if he came through the door...the dogs got him first and then I would shoot him.....luckily the cop came up behind him with his gun and made him back off of my door. He was sooooo drunk. The cop's wife called the dispatcher at the station and had them send a patrol car by to pick him up and I went and filed charges the next day because I wanted my front door paid for.....LOL The guy seriously thought he was at his own house and his wife wasn't letting him in. He had splintered my front door from beating on it!Dogs , no matter how big and fierce, can only really give you warning about an intruder. Anybody intent on harm will simply shoot the dogs. Little dogs are hated by burglars because they are hard to hit, and won't shut up, if the big dogs let them get that far. Then it's up to you.
So, that's why I tell everybody to keep their dogs CLOSE to them....don't send them out because they can be shot. You want that cushion barrier of protection so that you can have a defense set up to deal with the intruder. Too many people open their front doors so willingly to just anybody. I never do.....I have my big dogs go to the door with me and I look outside my peep hole before I open up. It has definitely made people think before coming in my house.....LOL