Possession Aggression and relation to Separation Anxiety

Question
Possession Aggression and relation to Separation Anxiety

My wife and I have a 10 month old Beagle/Jack Russell that we adopted form the pound.  For the most part he is easy to train.  He will sit, stay and lie-down.  He will sleep in is create at night and in the car when we travel.  He is rarely aggressive to other dogs and it only has happened if the other dog was aggressive first when he is on a leash during a walk.  He is affectionate to everyone that passes by including little kids.  

However the biggest issue with the dog is the Jekyll and Hyde impersonation when we have given him a Kong with peanut butter or a piece of a cow femur bone when we leave for the day.  He is more aggressive towards my wife then he is with me.  He nearly bit her and that nearly pushed us over the edge.  The only way to get him to stop the aggression is sever dominance by me or a beef heart treat to distract him.  He turns into the lovable do in second when the beef heart treat is introduced.  I feel if we continue to give into his behavior he will feel dominant and thus we will get bitten by him and have to give him up.  

Some other background information.  He has some separation anxiety as well when we leave in the morning that is why we have given him the Kong/bone along with other toys to entertain himself while we are gone.  He was left in the house (With a doggie door) for a time and he began to bite some furniture and a rug.  For the past week he has been outside form 8 AM to 4PM.  Aside from may be five minutes of crying he is fine all day according to our neighbors.  

We have been trying many things. We have been feeding out of the hand.  People have suggested many things but it appears that the Kong/bone thing triggers a little monster. What are we doing wrong and how can we deprogram the passion aggression and the separation anxiety (they appear to be related)?  People have suggested many things but it appears that the Kong/bone thing triggers a little monster.  Please give us some advice.


Answer
They are related. They are all part of being uncomfortable with his place in his pack. You need to learn to establish and maintain pack order in your home. Nothing belongs to him, it is all yours. This will end his insecurity as well. Type alpha boot camp into your webbrowser. If you implement their suggestions and retrain both yourself and your dog, you will be amazed at the difference. Meanwhile, WALK him. Forty five minute power walks with the dog at heel EVERy day no matter what. You won't believe the difference in his behavior and attitude as you progress. Meanwhile, crate your dog when he is alone. Leave him toys that he is ONLY allowed to have when you're gone. Food stuffed Kongs are perfect especially under the circumstances. Leave a tv on in the room with him, preferably where he can see it. Don't make a big deal of leaving, or of coming home. No mushy goodbyes or overly excited hellos. Just matter of fact, time for the crate etc. Keep your voice always even and non excited. You can do this :)
Good luck
Cindi