Souraya,
I'm sorry but I have to agree with the people on this board. I know it's hard to accept that we have problem dogs.
Not too long ago, I was in the same shoes you're in. I had a Rotty who was so friendly for the first five years of his life. He greeted everybody with a kiss and a lick and the butt shake thing. Then he slowly turned. It was so slow I didn't even see it happening. Somehow our alpha roles reversed. When I got close to him at times he would growl at me. I'd just shrug it off and say, oh, stop that. But I would leave him alone so he got his way. People would tell me to watch out for him but I'd come back with he's not mean, he's just a little protective. He knows he has it good here and he doesn't want anything to happen to us. As long as you don't come in our house unannounced, you'll be fine. He's only protecting our house. Until that day he got loose, went out of our yard and attacked a neighbor. It was winter and she had a coat on so he just tore the coat up but if it was summer, he would have got her shoulder. We have children on both sides of us so we decided to put him down because we didn't want to risk putting anybody else through what that lady went through. I will never forget the horror on her face. I would have not have been able to live with myself if I had found another home for him and he did it to somebody else. Looking back I see that things started to change when he was around five but I was in denial. He was eight years, nine months old when he died. I miss him terribly but I know I did the responsible thing. I'm sorry to say that your dog is showing some of the signs that my dog did. Please, get help now before it's too late. I wish I would have opened up and listened to the people who were trying to help me. I would hate to see anyone be put in the position that I was in.

[ August 23, 2001: Message edited by: Stenograsaurus ]