Has anyone used a DAP Collar or plug in & if so do they really work? Or a "Good Behaviour Collar". I have just moved house and one of my dogs who is already on Prozac is not coping at all. She was a very traumatised dog when I got her and it has taken years of training & reassurance to make her live some sort of normal life but this move has thrown her off the deep end & I am at a loss as to what to do. Any idea's would be great.