Expert Jean Donaldson Unveils Second Edition of Landmark Guide on Canine Resource Guarding

Renowned dog trainer and behavior expert Jean Donaldson has released a highly anticipated second edition of her seminal work, Mine! A Practical Guide to Resource Guarding in Dogs. The updated guide, published by Dogwise, addresses one of the most common and often misunderstood behavioral challenges faced by dog owners: resource guarding. Donaldson recently joined Zazie Todd, PhD, and Kristi Benson on The Pawsitive Post in Conversation podcast for episode 60, offering invaluable insights into the revised book and the nuances of canine resource guarding. The discussion, available on major podcast platforms and YouTube, provided a comprehensive overview for both seasoned professionals and concerned pet guardians.

The Evolution of a Seminal Work: Refining Strategies Over Two Decades

The decision to publish a second edition of Mine! comes more than two decades after its initial release, a period during which Donaldson has accumulated extensive experience through thousands of additional cases at her renowned Academy for Dog Trainers. This wealth of practical application and observation has allowed for a significant refinement of the strategies presented in the book.

Donaldson explained that the first edition, written with a strong emphasis on DIY application by owners potentially without direct trainer supervision, included "every conceivable sort of step" and "very incremental plans." This cautious approach aimed to prevent incidents by guiding owners slowly through the process. However, her subsequent experience revealed that while thorough, this might have been overly cautious for the majority of cases.

"About 20 or almost 25 years of additional cases under my belt [allowed for] refining what needs to be done and what actually is superfluous," Donaldson stated during the podcast. The new edition, therefore, offers a more efficient and adaptable framework. "I’ve sort of refined the plans that the vast majority of dogs are going to need these steps, and only some will need these additional steps," she elaborated. This allows for a more "a la carte" approach, enabling readers to select the most relevant steps for their specific situation, making the intervention process more streamlined without compromising safety or effectiveness. This evolution reflects a growing sophistication in evidence-based dog training, moving towards optimized protocols grounded in extensive empirical observation.

Dismantling Dominance Myths: A Paradigm Shift in Canine Understanding

A central theme of Mine! and Donaldson’s broader philosophy is the debunking of pervasive myths surrounding canine behavior, particularly the outdated concept of "dominance aggression." Historically, resource guarding, alongside other forms of aggression towards owners, was often misinterpreted as a dog’s attempt to assert dominance or "take over the household." This perspective led to punitive and often counterproductive training methods, such as forcibly taking away a dog’s food bowl to "show them who’s boss."

Donaldson vehemently rejects this interpretation, describing it as "overkill" and attributing the behavior to "wonky software" — a vestigial, normal animal behavior rather than a character flaw or a deliberate challenge to human authority. She draws parallels to observed behaviors in wild animals, such as hyenas guarding a carcass, emphasizing that resource guarding is an innate survival mechanism, not a sign of a "bad" dog.

The shift in understanding from dominance theory to a more ethologically sound view of canine behavior began to gain traction decades ago, with pioneers like Ian Dunbar advocating for prevention strategies such as positively reinforcing puppies at their food bowls. Donaldson notes that these early prevention exercises laid the groundwork for the highly modifiable treatment protocols detailed in Mine!. "If it’s so easy to fix with some chicken, how can it possibly be sort of a character trait?" she posited, underscoring the behavioral, rather than inherent, nature of resource guarding. This modern understanding emphasizes positive reinforcement and desensitization, building trust and positive associations around contested resources, a stark contrast to confrontational methods that often exacerbate fear and aggression.

Understanding Resource Guarding: A Behavioral Perspective, Not Pathology

Resource guarding, according to modern canine ethology, is not a pathology but a normal, innate animal behavior. It manifests when an animal perceives a threat to a valuable item or location and responds defensively. In dogs, this can extend to a wide array of "resources," including food, toys, sleeping spots, specific people, or even seemingly innocuous objects like a discarded sock.

Donaldson clarifies that the variability of resource guarding in domesticated dogs, compared to its near-universal expression in wild canids, is largely due to the absence of strong natural selection pressures in breeding. Unlike their wild counterparts, domestic dogs are not typically bred for their resource guarding tendencies, leading to a spectrum of expressions from mild to severe.

Furthermore, the notion that resource guarding is a result of "spoiling" a dog is another myth robustly challenged by Donaldson. "When you unpack terms like spoiling the dog, it usually unpacks as somebody’s being kind to their dog," she observed. Resource guarding often emerges at a predictable age, regardless of the owner’s indulgence or training style, suggesting an underlying genetic or developmental predisposition rather than a consequence of the owner’s kindness. Blaming owners for "spoiling" their pets not only misunderstands the behavior but also places undue guilt and can deter them from seeking effective, humane solutions. Instead, understanding it as a natural, modifiable behavior empowers owners to address it constructively.

The Critical Role of "Warm-up" in Training for Real-World Success

A crucial concept elaborated in the second edition of Mine! is the distinction between a dog performing a learned behavior "warmed up" versus "cold." In many training contexts, such as teaching a "down-stay," a slight delay or a second cue might be acceptable. However, for critical behaviors like not jumping up on guests or, more significantly, not resource guarding, performance needs to be reliable "cold" – meaning without prior practice or cues in that specific moment.

"We want it cold," Donaldson stressed. "We don’t want the dog to aggress at all. And in real life settings, when we’re going to approach… the first time we go past his food bowl… we want him to not guard." The danger lies in a dog performing well during a structured training session (warmed up, anticipating rewards) but reverting to guarding behavior in an unexpected, real-life scenario (cold).

The revised plans in Mine! explicitly address this challenge, guiding owners to train for "cold" performance. This involves gradually increasing the unpredictability and real-world applicability of the training scenarios, ensuring that the dog’s learned positive associations and non-guarding responses generalize effectively outside of formal training sessions. This meticulous approach is vital for ensuring safety and long-term behavioral change, reflecting the Academy for Dog Trainers’ emphasis on technical precision in implementation.

Identifying Comorbidities: The "Don’t Touch Me, Don’t Touch My Stuff" Dog

Donaldson also highlights potential "comorbidities" associated with resource guarding, noting a frequent co-occurrence with body handling sensitivities. She affectionately refers to these dogs within the Academy as "Don’t touch me, don’t touch my stuff" dogs. This means that a dog prone to guarding resources might also exhibit discomfort or aggression when touched in certain ways, or when their personal space is encroached upon.

While Donaldson acknowledges that this observation might be anecdotal, stemming from her extensive case experience, the connection is logical. Both behaviors stem from a dog’s perception of a threat to their autonomy or possession. A dog that is "prickly" about its possessions might also be "prickly" about its body, viewing certain human interactions as an invasion.

Recognizing this potential link is crucial for a holistic approach to behavior modification. Owners dealing with resource guarding should also assess their dog’s comfort with various forms of body handling – petting, grooming, leash attachment, or veterinary examinations. Addressing both aspects concurrently, using humane and positive reinforcement techniques, can lead to a more confident and less reactive dog overall, improving the dog’s welfare and the safety of human-dog interactions.

Navigating Resource Guarding Between Dogs: When to Intervene

While resource guarding towards humans requires proactive intervention for safety and improved human-dog relationships, Donaldson offers a more nuanced perspective on resource guarding between dogs. Her general advice, perhaps counter-intuitive to some owners, is often "to do nothing" if certain conditions are met.

"If they’re not hurting each other, so they’re not actually inflicting injuries, and if no dog is being made fearful," then direct intervention might be unnecessary, Donaldson explained. Dogs, much like humans, engage in conflict, and often possess sophisticated communication skills to resolve these disputes non-injuriously. They "read each other well and they mind each other’s stuff," she noted.

Humans tend to "freak out" about inter-dog squabbles, often projecting human moral judgments onto canine interactions. However, a brief growl or a defensive posture between dogs over a toy or a prime sleeping spot is often a normal, self-regulating interaction that rarely escalates if left alone. Intervention is primarily warranted when physical harm occurs, or when one dog consistently intimidates or frightens another, leading to chronic stress or avoidance behaviors. This approach encourages owners to observe and understand canine communication, rather than automatically viewing all conflict as problematic.

Challenging Cases and Triumphs: The Modifiability of Guarding

Donaldson’s career is replete with success stories demonstrating the profound modifiability of resource guarding. She recounted a particularly challenging early case involving an Old English Sheepdog. The owner, trying to convey the severity, stated, "my dog guards everything." Donaldson initially thought this might be hyperbole, but soon discovered the dog indeed guarded "no matter what piece of matter you put next to this dog, even something he didn’t like." The dog had even bitten the owner severely.

This case, occurring relatively early in Donaldson’s career, was a significant challenge, requiring extensive "messing around" to navigate. However, the dog ultimately "did fine." This triumph underscores a fundamental principle of behavioral science: most behaviors, even severe ones, are learned and thus modifiable through systematic, positive-reinforcement-based interventions. The key lies in understanding the underlying motivations, breaking down the behavior into manageable steps, and consistently applying the correct techniques. Such cases serve as powerful examples that even the most entrenched resource guarding can be resolved, greatly improving the dog’s quality of life and the safety of its environment.

The Indispensable Role of Professional Guidance

While Mine! provides comprehensive, step-by-step guidance, Donaldson strongly advocates for seeking professional help, especially when dealing with any form of aggression. "If a dog is growling, snarling, snapping, biting, immediately get yourself into competent hands," she advised.

The dog training industry, however, is largely unregulated, leading to a wide spectrum of competence and ethical approaches. Donaldson cautions potential clients to be "very choosy" about the trainer they hire, emphasizing that "it is still the case that you could hire somebody who’s going to come and make it worse." She recommends consulting reputable organizations like the Academy for Dog Trainers or the Pet Professional Guild, which vet trainers based on their adherence to humane, science-based methodologies.

Hiring a qualified professional ensures that the intervention plan is tailored to the specific dog and household, implemented correctly, and adapted as needed. This prevents common "mission-critical errors" that can stall progress or even escalate the problem. For behaviors involving aggression, the stakes are high, and relying on expert guidance is not just beneficial but often essential for achieving safe and lasting resolution.

Looking Ahead: Continued Education and Bark! Fest 2026

Jean Donaldson’s commitment to advancing humane, effective dog training continues beyond the pages of Mine! Her work, including the Academy for Dog Trainers and seminal books like Culture Clash, has profoundly influenced the modern dog training landscape, shifting it towards evidence-based, positive reinforcement methods. Culture Clash, notably, was named the number one training and behavior book by The Association of Pet Dog Trainers, cementing her status as a leading voice in the field.

Her appearance on The Pawsitive Post in Conversation and the release of the second edition of Mine! are testament to her ongoing dedication to educating dog owners and professionals alike. Furthermore, Donaldson is slated to make another appearance at Bark! Fest 2026, a book festival for animal lovers. This upcoming event provides another platform for her to share her expertise, reinforcing the importance of continuous learning and adherence to best practices in animal welfare and behavior.

The dialogue surrounding resource guarding, facilitated by experts like Donaldson, plays a crucial role in improving dog welfare and fostering stronger, safer human-animal bonds. By dispelling myths and providing actionable, humane strategies, Mine! serves as an indispensable resource for anyone navigating the complexities of canine behavior.