Hi I am new here We just got our first Dobe. His name is zeus he will be 8 weeks tomorrow. We got him Saturday evening. So this is day 3 I guess and a rough one. I have another dog a Malti-poo. Very passive easy going dog. This new puppy wont leave him alone. chases him everywhere. When he gets close he slaps at him and sometimes tries to bite at him. I think he is playing his tail is wagging. I know they also need to find out who is the alpha but wow its getting old! I also have 3 boys ages 15,10, and 4. the puppy seems to really like the younger two but seems to be getting rough with the baby at times biting his leg and his but. Again with this I think he is playing too, but that needs to stop! He didn't seem agressive when we got him although I think he was the largest. I know we have alot of work ahead of us but what can I do to get him to lay of the other dog and make sure he know my 4 yr old isnt a chew toy. Do I need to worry he will hurt them? starting to worry!