I would have to agree with the list also even the border collie. I own a border collie that can be the sweeted dog ever one minute and the next snap at you. I all have 7 other dogs so 8 total. I one dog that I find if not trained right and socialized alot is an Norweigan Elkhound. I have two of them Great dogs 95% of the time but they are also a little to much of a guard dog. GSD is still a puppy at 11 months but at 80 lbs she looks mean when she runs at you barking or not. Any dog can you good or bad it depends on US as humans to make the dogs a good dog.