I'd actually heard this before, I don't know whether it's true or not. I remember a few years back I was watching It's Me or the Dog when Victoria was still filming the show in England and she was trying to help a family who had a nasty Cocker that kept attacking their young daughter. After all the training Victoria ended up telling the family the dog needed to be euthanized because it was just too aggressive. That was the first time I'd ever seen one of these tv trainers tell a family to put a dog down.