I love dogs, we had dogs in the past and they play a crucial role in every home's security particularly here in my village or the entire country for that matter because dogs just gives thieves a second thought when they would try to rob a house or property.
Dogs would bark in the presence of a new person or intruder that they do not know so the homeowner would get notified or warned immediately because of the dog's bark if there is something wrong or somebody is at the gate or in the vicinity of the house that the dog could see.
But if possible it is better to train a dog like in this video where it is just highly trained when or where, or whom to attack or what to do at a command.
I like my guard dog to be isolated for a while not seeing other people. It will make them vicious to an intruder because they would not know them and treats everyone that they do not know to be an intruder. That is a very good guard dog in my opinion but of course the dog would not be controllable so if the guard dog could be trained it will be much better because you can just yell a command and the dog will obey.
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