I am currently in dog training school and my lab is very disruptive. Is this too young for a lab to be in this class. All the other dogs are his age or younger and they are very obedient. I have the only lab in class. He will listen when there are no distractions like at home or in a field by ourselves. Also I find it weird that he does not like to retrieve items out doors. Has any one else experienced these things? Is there something I can do or will he grow out of the bad behavior and this is just a puppy stage?