The cats are the problem as one needs urinary track special foods but he dominates his brother and will try to get his food. Both are scaredy cats and will hide in the basement from strangers. So you cannot just put both kinds of food down and walk away. Both are indoor cats. The dog is a charmer and all three animals are very comfortable together. However, if the door bell rings the dog gets very excited and the cats run into the basement. The dog is a Corgis/Siberian Husky mix - 40 pounds, 13 inches at the shoulder.