I explained this to my fiancee, who is a counselor with a masters in social work. I don't think it's made a difference, other then allowing me to occasionally

I explained this to my fiancee, who is a counselor with a masters in social work. I don't think it's made a difference, other then allowing me to occasionally quack for a response (to get a laugh) when she's taking to me. She prefers for me to take the place of the rubber duck anyway, because I'll "quack" out a valuable suggestion that she hadn't considered maybe a 3rd of the time. Apparently I'm just too helpful. I suspect it works far better with computers and programming because we're trying to solve a specific issue that doesn't involve feelings and group politics. Further more, it seems to make a psychological difference when a person is listening, as opposed to just talking to an object. On the other hand, it could just be because of her career.