We have all heard or read about the dog that attacks another dog or cat inflicting serious injuries or even death.
What about the child that gets mauled, and maimed for life.
Or there is the adult that gets bit.
Could these situations have been avoided? What does one do to handle this type of situation? I put the responsibility first on the breeders, then on the pet owner.
A lot of pet owners don't understand that much about dogs and their drives.
Bad behaviors how to avoid them, or spot them, let alone fix them.
A dog can have:

• Fear aggression, usually seen in dogs with timid or soft temperament.
  
• Motion aggression, usually means the dog has a very strong prey drive.
  
• Animal Aggression can be bred into a dog or caused by a bad experience from another animal.
  
• Aggression towards people sometimes it is directed more toward a gender, or kids, or just adults it can come from bad breeding or intentional or unintentional bad experiences with humans.
  
• Idiopathic aggression unknown cause or mental instability.
  

Dogs always give a sign before they are going to do something.
It's called body language.
Now sometimes they are hardly noticeable, like the whiskers moving, ear movement or position, the change in body language, the tail position or movement, the look in the eye, the breathing, the tenseness of the muscles, but there is always a sign.
Did you know that you could test a pup and have a pretty good idea how he will be as an adult? Of course his experiences will play an important role in his shaping.
One must know their animal in a variety of situations and observe them.
They must also proof or test their animals in a variety of circumstances to really know if they are truly trained.
Prey drive, the desire to chase a ball, cat, car, can be difficult to control, but it can be controlled if you start at a very young age, like as soon as you bring that pup home.
Proper socialization with people and animals play a huge role in having a well-adjusted dog.
Your dog needs to learn how to control himself and his drives.
That is where training comes into play.
Motion aggression, is usually a high prey drive, it can be counter conditioned to no longer be a problem.
Most negative behaviors can be controlled but not without a lot of work, leadership, counter conditioning, obedience training and lived as a lifestyle.
If you know your dog has an aggression issue, then you should do all in your power to contain and control your pet.
Avoidance is one way of control but it doesn't get rid of the problem.
You're just not allowing your dog to get into a situation that stimulates the unwanted behavior.
It's a quick fix, but not a permanent fix.
Repeated behavior becomes learned good or bad.
Your dog doesn't look at behaviors as good or bad, they just react and repeat what brings them pleasure and rewards.
If you have a pet that has an aggression issue that you don't want to fix or have the time to correct, or the time to truly supervise, then the animal should be put down if you cannot find a suitable home or job for the dog.
I feel like there are too many good dogs out there that need good homes.
Aggressive dogs should be put down if they cannot be controlled.
It is one of the hardest behaviors to keep under control.
It needs strong leadership, training, counter-conditioning, and supervision.
It's a life style, and a responsibility! I find that a lot of people have problems with their dogs because they don't treat them as dogs.
They seem to think they are little people in fur coats and that could not be any further from the truth.
Dogs are animals.
It boils down to lack of knowledge, training and responsible breeding and pet ownership.