The first thing that usually comes up in this term is the historical past of bull-type terriers, which to varying degrees, depending on the breed and the lines, leaves an imprint on their current temperament too. This imprint is still more or less there, but it's not as dark as the media sometimes describe it. It's also a part of our beloved breed, not the only one and not always our favourite one, but an important piece that makes a Staffordshire bull terrier's character as we love it. Yes, SBT are often spicy, rarely dog-friendly, and sometimes make multiple pet households challenging. On the opposite side, attempts to breed out all the spicy parts in the breed were already done, but genetics is much more complicated than a pizza: you can't take out pieces that you don't like and enjoy the rest. In genetics, you are losing some pieces or gaining some, and the amount of fearful, insecure Staffordshire bull terriers nowadays puts much more strain on the breed fans than their attitude towards other animals.
Staffordshire bull terriers get along with other dogs in the family and love to play, and like most terriers are very social. However, multiple dog households require daily management to ensure that each dog's needs are met and fulfilled. That's essential so that the dogs will live happily, and the risks of conflicts between them will be low.
With a Staffordshire bull terrier in multiple dog households, communication issues or resource distribution between the dogs can easily escalate into conflicts if not managed and prevented. SBT is assertive, often rude in body language, and can be inattentive to the body signals of another dog. They get excited quickly and can easily become emotionally overloaded. Special attention is required in situations where dogs are excited by or interested in resources in common: food, toys, favorite places, and even the attention of the family members. Sometimes the resource that provokes a conflict can be something as insignificant as a place on the couch or too a too exciting game. Managing these situations requires family attention and certain experience, so it's best to make sure in your skills and capacities before getting a second or more dogs. But still needed to say that it's not that much of a breed-specific thing. Of course, SBT do have their mentioned qualities, but conflicts can also happen in a pack of poodles or any other breed. And with any breed, multiple dog households will require much more of the owner's attention to provide all dogs quality lives.
The risk of conflict sometimes increases when it comes to dogs of the same sex - males often do more complicated with other males, as do females with females, especially during heat periods and significant hormonal changes, but its not a strict rule. Depending on dog’s characters, they can get along better too. It is also not recommended to leave several dogs of any gender together alone without supervision, but this is also a fairly general recommendation, relevant to other breeds as well. In our kennel females do live together in one household including heat periods, but they often walk and train separately, and do not stay home alone together. Conflicts in any family cannot be completely avoided, like with humans, but sufficient attention to safety precautions can make the lives of its members comfortable and safe for both people and dogs. However, if the family is not able to invest a lot of time and effort in managing it, the dog should better remain the only one in the house.