I have three pets, two Golden Retrievers and a pound cat. The cat prefers to be outside most of the time and the dogs prefer to be on whichever side of the door they are not on at the moment.
Fuzzball was originally my brother's cat but when he moved out and got married the cat stayed. He is all black and has quite long fur, he gets along well with dogs and seems to enjoy his role as the prey in their games of chase. Fuzzball easily leaves the yard and hunts the whole neighborhood for small animals, though thankfully he doesn't bring them home. Once or twice a day he wants to come in either to get fed or petted.
Junior is one of two dogs which were 'willed' to me when their owner passed away. It was either me or the pound and there were issues which would have hurt their chances for adoption so I took them. Junior is quite old, about 13 years, and is mostly interested in food and getting petted. I play fetch with him and Cody sometimes and I have to be careful to throw some balls in an area which he can get to before Cody because he just doesn't get around that fast anymore.
Cody is the other dog which got 'willed' to me, he was an extremely nervous dog when he first got to my house and wouldn't even come in for over 24 hours! His last owner didn't really socialize the dogs to people, they were put out whenever there were visitors so they developed some bad habits. By careful treatment and consistent rules I have gotten both dogs to be much more able to deal with people, neither one jumps up on people when they come over anymore and it usually only takes a few minutes for them to calm down if the people ignore them. Even though Cody is young enough that he probably would have gotten adopted he is exceptionally attached to Junior and probably would have made a bad pet to someone who didn't have a lot of patience and didn't understand how to address his problems. He is still very jealous of anyone else getting my attention but we are working on that by sharing equal time between him, Junior and Fuzzball and he is not allowed to push in between me and the other animals if I am giving attention to one of them. You might notice Junior's head in the bottom right-hand corner, photographing dogs isn't the easiest chore.
I firmly believe that there is no dog which cannot become a good pet if the owner takes the time to understand the issues involved and consistently addresses them, and has ample time to spend with the dog. I have a problem with people who take on the responsibility of a pet and then don't bother to be a good owner to that animal. Dogs imprint into a pack and they need their owner to take on a role in that pack. If the owner chooses not to take on the alpha role then the dog will take it on. It is not difficult to take on the alpha role, for the most part the owner already has it because s/he supplies the food, controls access to the outdoors, is the largest pack member and the smartest. The dog is ready to be submissive to the owner and all it takes for the owner to have an easy to control dog is to act like the one in charge.