There are many pros of having pet at home, like active, playful and healthy life but there are many cons of having pet at home too. You simply can not ignore your pet if you have one, you will need to give them some time from your busy schedule.
So responsibility can be increase if you are having a pet at home. At second point, you will need to make sure your pet do not have any kind of disease because it can jump over and your body can adopt it too.
While you feel protective having a dog, you can feel security hazards in your house too. Dogs sometimes can attack their own owners like a bear or a deadly lion in the video below.