These techniques help dominant or difficult dogs and make good dogs even better.

A dominant dog is happy with those he feels he is dominant over (like children and women). In the dogs eyes he sees you all as his pack members and he wants to be the dominant male, and all others under him. He is aggressive with any one (males) he thinks may dethrone him.

Other dogs that are submissive toward him he would be ok with and other male dogs or dominant dogs (not always male) he will have a problem with.

This behavior will worsen over time if let go.
(eg. the dog will snap if lower members of his pack touch things that he has claimed as his (food, toys, or treats), Instead of just getting grumpy or growling in an attempt to discipline and bring order to his pack he will turn to snapping.)

To fix this behavior:
- don't let him on furniture (he will think he is an equal)
- control the food (don't leave food down all the time. Make him sit and lay down and wait until you tell him he can eat)
- do a technique call the umbilical, put him on leash and hook the leash around your waist and make him walk behind you as you do your every day chores (do the dishes, vacuum, etc) do this indoors and in you backyard as well. As you do this never let him go in front of you, never let him enter a doorway in front of you, never let him go up the stairs a head of you. (The pack leader always goes first. When you first do this watch to see if he tries to take the lead. If he does you will know he thinks he is the boss.)

Don't talk to the dog too much, let the dog learn to read your body language.
Every member of the family should take turns doing this as well as feeding him as described above.

The dog will soon realize he is not the boss. You are re-organizing the pecking order in the dogs head. He will realize he is last and the last member in the pecking order has no say they simply follow and if you have no problem with the vet or any other dominant figure he will say in his head "ok your the boss."