I have a border collie who is three months old and amazingly she does really good about not going to the bathroom in the house, but she has other problems I need help with. When she plays she gets overly aggressive to the point of growling and biting and at this point she has some very sharp teeth that can do some damage. And when she's in this mode she doesn't seem to listen to any commands she thinks every tap or push is a sign that you want to play more. What I'm asking is if someone had the same problem to tell me how you fixed it or give me a site that has a specialized way to train border collies.
thanks
