What a bunch of morons! They must not have had very many big dogs in their lives? If they did the dogs rule!
From a puppy when a dog displays that behavior you send a knee into their chest and make that behavior very uncomfortable. It will stop.
Yes. Indeed.
I grew up with German Shepherds and my parents bred then when I was younger. (My favorite dog actually.) Smart, loyal, fearless, and VERY easily trained.
DUmmie, you make the rules and train the dog. Not the other way around.