Just a sample of aggressive behavior from a dog are, among others, protecting and guarding of food/treats/toys, attempting to mount a human, not rolling over his or her back, and barking to demand things from you. While some dogs will do one of these things, aggressive dogs do all these together with many others. If more than one is happening, you need to help your dog through Jack Russell Terrier Training.
If the dog is already displaying aggression, you need to put on your to-do ASAP list that the dogs are no longer allowed to stay on the furniture. The dog is not banned forever; its just that its staying on the furniture is not helping it to reign in its aggression.
You will also need to control when the dog eats. The worst that could be done is to just pour food in a bowl whenever the dog seems to be hungry, and leave the dog to finish the food. Instead, you need to make the dog wait using the “sit” command as you prepare the bowl. Then the dog needs to finish; if the dog seem to be taking its time, take back the bowl and thats it for that meal. Always be in charge of the food and show the dog you are in control.
Determine and limit play time. Be the one to start and end, always waiting for the dog to be ready and waiting; otherwise, nothing gets started at all. If the dog breaks the rules at one point, or changes the game, quit playing and walk away back to the house.
On your part, remember that in all this Jack Russell training tips, you need to avoid a confrontation as much as possible. After all, you’re encouraging what’s good, not constantly spotting what’s bad.
What the dog is being taught here is that “Nothing In Life is Free,” as the theory also goes. The dog has to do behave well in return or do something productive if it wants or needs something. So it only earns praise when it obeys, but never for nothing at all (some people simply cannot help but spoil). All throughout, correction for bad behavior needs to go with teaching the correct behavior.
Among the things you must never attempt, though, is to scruff or alpha roll the dog. Even in the early hints of aggression, a dog needs to be taught manners ASAP. Never wait for the time that you get bitten, and the dog wins a major point over you.
Before we end, it is also important to consult a trainer that will assess the dog and your family situation. An objective and expert opinion on Jack Russell Terrier Training dropping by your home to see things up close is always a welcome help.