How do I stop my dogs jealousy?

As a couple of us told you in your other question, your biggest problem is that your dog doesn't know who the Alpha is. Pick ONE dog to feed first, and stick with that. Or feed them at the same time, from different bowls, etc... He starts this behavior (sorry, growling, etc... IS aggression), he is corrected with a firm "no" and removed from the area.

Worse comes to worse, get a baby gate and section off a small area of the house (I don't mean by putting him in a room with the door shut, etc...) as a sort of "time out" area for the dogs. He acts up, give him a correction, and he goes in time out for a couple minutes until he's calm and quiet. Do NOT take him out if he's whining, barking, crying, etc... Same goes for the bed, he acts up, give a correction, and remove him from the bed until he calms down.

Sounds like he's trying to run the show, rather then you running the show, so to speak. "Jealousy" in dogs is a way to prove dominance over another dog, OR you. Sounds like he's trying to show himself as the dominant member of the pack by acting out to get his way.

This behavior should NOT be tolerated. Keep in mind that even small breeds need discipline and training. As was said in your other question, google the NILIF (Nothing In Life Is Free) training method.

As for the biting at strangers, it sounds more like the dogs lack socialization, training and discipline. The second this behavior starts, give a correction and remove the dog from the area until they are calm and quiet. Sounds like they also need a good bit more socialization as well.

Obedience classes are a GREAT way to get this, along with a professional to help you with your dogs' issues. I highly doubt the dog thinks a guest will try and take it away. Dogs don't think the same way humans do, keep that in mind.

Were they socialized from the minute you got them, with house guests, strangers, etc...? Dogs of any and all breeds NEED proper socialization from day one to prevent issues like this. For all of the above issues, you may need to hire a professional trainer and/or behaviorist to assist you in correcting this behavior.

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