Bullmastiff vs Nova Scotia Duck Tolling Retriever

This is a genetically rooted trait in many Bullmastiffs. While they may coexist peacefully with dogs of the opposite sex, placing two males or two females together often results in severe conflict once they reach social maturity (18–24 months). This aggression is rarely "cured" through training; it is managed.

Bred to track and hold poachers silently without human direction, the Bullmastiff is an independent problem solver. They do not have the "will to please" of a Golden Retriever. If a command does not make sense to them, they will simply ignore it. This is often misinterpreted as stupidity; it is actually a refusal to perform rote tasks without high-value motivation.

While independent in thought, they are physically clingy. They will lean their 120-pound bodies against you, sit on your feet, and follow you from room to room. This constant physical presence can be overwhelming for owners who value personal space.

This is not a myth. When excited, frustrated, or anticipating work (like a ball throw), Tollers emit a high-pitched, piercing shriek that sounds like a banshee. It is startling to neighbors and can be difficult to train out because it is an involuntary expression of arousal.

Unlike many show-line Golden Retrievers who are happy to lounge after a walk, a Toller often requires relaxation. Without a "job" or rigorous mental stimulation, they can become neurotic, pacing, whining, and destructive.

Tollers are not "everyone's best friend." They are typically aloof with strangers, ignoring them to focus on their owner or a ball. This can be disappointing for owners expecting the social butterfly personality of a Lab or Golden.