I used to do volunteering at a dog rescue centre, (until I realised it was all a con, but that's a different story. ) To my point....... somebody brought in a huge black GSD, a cracking looking specimen. The owner gave a lot of excuses and sob stories about why he was getting rid. The truth was that it was a nut job. It could be fine with some people but then go into hyper -aggressive mode with others. There was no logic as to why it would flip. Anyway the first time it flipped I said the dog should be put down, but they persisted, recklessly, to re-home it three times. It came back with the