Hi. I have a new female black lab puppy. She was born Feb 20th. I have never had a puppy do this before, so I am unsure of what to do. Our puppy will growl at us if she is sleeping or tired and we touch her- go to rub her butt etc. I am getting mixed messages from people. Half the people say she is a puppy and she should NOT be doing this. The other people say she is tired, separate her, train her and she should be fine. Do I have an aggressive dog already? Thanks for the help. I was unsure if we should contact the breeder or if this was normal and we should just train her.