I have had a few that would come in and had no problems with the house dog. I have a male now who seems to be a very solid bulldog but our Yorkie and pups walk right up to him and play. When Im working him, me and my daughter walk them together. We dog sit for my wife's aunt a couple weeks ago and her dog fire up at my male. My wife said oh my god the way he screamed to get to that dog is scary. I just laughed and said thats why I don't get too comfortable.