Merlin is 3/4 Dogue de Bordeux and 1/4 American Bulldog. His sister is still available and I would like to get her also but my youngest son thinks he will end up as a chew toy for both pups. I think more of his energy would be directed toward his sibling than my son. Have any pf you raised 2 pups with success? I am worried about the training problems with having 2 pups.