Firstly, dogs attack postman due to their animal instincts with regards to territory. Dogs descended from wolves and, as such, are particularly defensive of their territory. This was essentially for mating and food resources. The aggression often shows itself as aggression towards humans as they think that we are broaching their territory in order to take over their territory.

The delivery practice of the postman only serves to re-enforce this behaviour. The dog barks and then the postman leaves. Of course the dog doesn’t know that they are leaving because they have made their delivery. They believe that they successfully protected their territory by acting aggressively towards the person.

One way of avoiding this, is to introduce your dog to the postman. If your dog realises that the postman is welcome in the territory it may stop acting aggressively when they arrive. Another well known method is to install a small container near your gate filled with treats. Then when the postman arrives he can give the dog treats. In the long run this will mean that the dog will associate visitors with treats and an overall rewarding experience. I tried this method with my dogs litter before advertising boxer puppies for sale in order to make sure that they were safe to be pets. This method worked a treat.

The available training collars are very efficient in instilling a well mannered behavior in your dog. Imagine your dog dragging you on the way when walking; going out of home to the neighbors to cause havoc or even pounding on your guests. Therefore it is important to choose carefully the most suitable type of collars to use for your dog. These collars eliminate these unwanted behaviors and make your pet very disciplined and lovely to be with. They include:
Choke collars. These are the most common type of collars. They contain a series of chains which are loose on the dog’s neck. However, when the dog tries to pull away from you, the collar tightens thus making the dog to choke or even cough. They should thus be used very carefully.

Electronic collars. These are not very much used. They should be applied only on extreme cases of indiscipline. Whenever the dog goes out of its limits, it is shocked. These types may also be used using a control remote.

Pinch collars. This type is similar to the chain collar above. The difference is that, instead of choking the dog, it pinches or pokes the pet at the neck thus restraining it. It is gentler than the chain option and no injuries can be caused.
With these different types of collars to restrain your dog, it is then possible as the boss to decide and control the dog according to the situation present.