[QuickSilver]

I definitely think so, because I saw Thor under someone else's tutelage. He was still a sweet little dog, but he shook all the time, and he was not potty trained. He knew no tricks. He didn't fetch.

I will admit that I thought I'd have better luck with his barkiness and fear of other dogs. However, I strongly feel that he has a much better quality of life with me, where he is no longer, and I quote, "lucky if he gets a walk."