The usual scenario happens: a dog owner suddenly finds himself in a dilemma. His once cute and cuddly dog suddenly turns into an aggressive and dangerous dog. The change was so sudden. The once easy to pet and playful canine suddenly tries to bite anyone, snarl at people and other dogs and will always start a fight with other pets at home. What could be the cause of all these? Are all dogs prone to dog aggression? Is there a remedy for this situation or your dog will need to be controlled using a chain or a cage? All these could be a very serious problem to an owner. It could also be a cause for alarm in a family especially to kids who love their pet dog so much. The best way to deal with these aggressive behaviors is to learn what is dog aggression and if this could be dealt at home.