One thing I would not do is allow another dog to put the pup in its place, and yes it is always better to start a pup on its own, on the day in question the pup was there only as a spectator, what surprised me the most was how quickly it manifested, the pup had never showed any signs of aggression or being possessive over food, kennel space, toys or retrieving dummies and she had already had carried dead fur and feather, thanks for your input and i will put things in motion to rectify this problem hopefully, thanks again