When a person gets a dog, they often have great thoughts about spending time with the dog and walking around the neighborhood. However, if the dog is not behaving appropriately then these things cannot happen. This is what often leads to someone who is trying to find the right dog obedience school. Getting your dog to behave is an important part of the relationship you will build.
You must remember that dogs are pack animals which means that they need a leader of their pack. Because of this, if the dog does not consider you to be the leader, they will take over that role. This is why dog training is so important because it helps the dog learn who the leader is and gives them the ability to be submissive.
You may be having problems with the dog being aggressive or dominant, and it is very important to stop that before it gets out of hand. Obedience training is not simply about teaching the dog to sit or stay.