I call Shadow my little genetic nightmare. She carried the Energizer Bunny thing to a whole new level! She would literally terrorize until she collapsed. One wee tiny puppy that was powered by a tornado! It was her mission in life to sink razor sharp puppy teeth into every thing that twitched in her presence.lol Right? I was just thinking how people make these puppies out to be monsters that require someone at home to exercise them all day long. Both my dogs are high drive sport dogs. I never needed to do that. If people really need to exercise their dogs several hours a day, either they have a monster of their own making by not teaching the dog to settle or the dog genetically is not balanced and has no off switch.
Judicious use of crating and structured play got us through those months. I set a schedule and made her abide by it. I worked her little brain and focused on shaping appropriate behavior. I never ran her for miles, I couldn't. She has a bad heart. The crate helped teach her to have the off switch that nature forgot to install.
Puppies that are even close to properly bred should not be difficult. A person just needs common sense.