I will be interested to hear any suggestions about this. I have a female pup that nips at all three of the other dogs constantly. We've tried to get her to stop, but she's not listening. My son has a male that does the same to their female to the point he gets frustrated about how to stop it. We've both tried gently pulling them away, distracting them, confining them (kenneling) from the other dogs; but nothing works.