It is no fun having a yorky that growls, snarls, or snaps at anyone who approaches when he is eating or playing with his toys. Prevent your yorky from becoming overpossessive by taking his toys away from him, removing his food, and adjusting his bed every once in a while.
This should be enough to prevent possessiveness from starting, and to teach him all about sharing. Don’t tease him by quickly grabbing at his belongings; that will make him nervous and snappy.
Also, make sure children steer clear of his eating area because he may think of them as rivals for his food. Tell children not to annoy him, and reprimand him for making any nasty moves.
Some dogs consider one small area such as their sleeping places the ultimate safety spot and become so overprotective of it that they will attack anyone who comes near. The moment your yorky manifests such behavior, reprimand him harshly.
Make sure your yorky realizes that others can approach that spot, but at the same time be sure no one annoys him there. Every dog is entitled to feel secure and comfortable and to have a little privacy.
If your yorky shows any resentment at giving up what he’s holding, stop him the first time it happens. Take hold of the object requested and insist that your yorky let go.
If he does, praise him; wait a moment and give the object back. If he refuses and even growls when you reach for whatever he’s holding, don’t grab at it or jerk your hand away. Instead, take hold of it, and give him a firm rap on the side of the muzzle to make him let go.
If necessary, pry your yorky’s mouth open and take the article out. If he adamantly refuses, throw something in front of him to startle him, thus making him drop the object.
You must make him let go or his possessiveness will become increasingly worse every time someone goes near what he thinks is rightfully his. If your yorky gets away with a snarl the first time, the next time he may actually bite since he feels he has already warned you to steer clear.
Once you have taught your yorky to let you take things away from him, expand the lesson to include at least other members of your family.

