prolly any GSD can do that at 5 months if owned by someone with no job and no life other than turning their dog into a circus monkey or a programmed robot. that person should work at seaworld or ringling bros and let the dog experience being a puppy. i strongly believe in training, but there is a line that when crossed, the training is solely for you to show off your robot on youtube and not in the best interest of the dog. kinda like the parent that forces their kids into spelling bees. let the kid be a kid and teach it what it needs to know, same with puppies.