I don't have much to add to Candy's post except to say that I have used the very methods she described in working with my golden retriever, Tommy, to give me things when I want him to give them. He was not showing any aggression, however when he got ahold of something such as a dish towel or sock and we caught him, he'd go tearing off to the back room far back into his kennel and then when I crawled down to get it from him he'd turn his head back and forth away from my reaching hand trying to prevent me from getting it. It was frustrating! He also would not willingly give up his ball and toys so I could throw them for him.

First, I stopped having any reaction when I caught him with something he wasn't supposed to have. My first reaction used to be to say "Tommy! Give that to me!" and of course off he'd go. I went and got a couple tennis balls that he had never played with before and he only had access to these when I was doing training sessions. Using hot dogs, I'd place the ball somewhere or just toss it and he'd go get it and bring it back. I'd put my hand out and say "give it to me" in a neutral calm voice. If he ignored me, I ignored him. He got no treat and the ball didn't get thrown again, he didn't get played with. He caught on pretty quick that giving it to me was much more rewarding than keeping it. I didn't chase him with it. It was comical because at first he'd take the ball and run off to his kennel, I'm sure expecting me to follow like normal. Instead after 10-15 minutes, he'd tentatively come back into the room with the ball in his mouth looking puzzled.

Long story short, after awhile he got more than eager to give me the balls on command. I then randomly worked with him with sticks/logs outside and his toys inside, asking him to give them to me and treating and rewarding him heavily when he did so. It got to where I'd say "give it to me" and he'd give me what he had and look at me wagging expectantly, just what I wanted! I knew I was truly successful when one day outside, he found a stale piece of bread that we had thrown out for the birds and picked it up eagerly to gobble it down. I stuck my hand out and said "give it to me," actually expecting him to ignore me. Much to my astonishment, he dropped the bread into my hand. This is a dog who is extremely food motivated so I just was truly amazed.

I hope with time, work and consistency you can have the same good success and I wish you the best with both Charlie and LuLu!