Two weeks is insane. It is essential for a dog to stay with it's littermates and mom for at least 6 weeks. They learn so much from that. For instance, when the pups play together, the dog learns that biting hurts. If he doesn't get rough play as a pup your dog can bite you and not even know he's inflicting pain. I would think that mommy's milk is pretty important also. If there is anyway for her to talk the people into keeping the pup longer, please do! I wouldn't take a pup that early unless it was absolutely necessary.