How do you treat bone spurs?

Aggressive dog when he has a treat/bone?

• He's two (old enough to know better). He's gone through obedience training. But whenever he has a bone or treat, he become extremely aggressive. Example: He had a bone in his crate. I took him outside this evening before we went to bed. When we came back in, he pulled the leash out of my hand and ran into his crate. I reached in to pull him out so I could take the leash off, and he bit my hand until it drew blood. I grabbed his collar and pulled him out, held him up to my face and yelled at him. He's a yorkie/poodle mix, so he's small, but still has sharp teeth. How can I brake him of his aggressiveness when he has a bone or treat?

• Answer:

  Its never to late to teach an old dog new tricks, for starters don't pull him into your. Face and yell, make him lie down on his side and I mean pinn him on his side and master him, speak stirnly to him tell him bad or no, one to two sylables is best and keep doing it, your master.