A lot of professional dog trainers hate Cesar Millan, and not just because he's rich. Millan—star of the television show Dog Whisperer, best-selling author, and friend of Oprah —believes that dogs need a leader, that leader is you, and that they must be given this information by any means necessary. His emphasis on human domination leads him to recommend, in some cases, rather dramatic techniques such as growling at the dog and rolling her onto her back while staring angrily into her eyes.
Millan himself says, "I don't train dogs." What he means is that he corrects behavior problems that are, at times, quite serious. But in the hands of amateurs, his tough-love techniques can seem harsh. Not long ago, the American Veterinary Society of Animal Behavior issued a strongly worded manifesto against Millan's so-called "dominance theory." A 2006 New York Times op-ed headlined "Pack of Lies" referred to him as "a charming one-man wrecking ball."
Such reactions are less a comment on Millan himself than a reflection of the latest skirmish in the canine culture wars. Before Millan, the popular wisdom was that dogs are best trained by giving them treats for good behavior. Dominance was downplayed, physical corrections discouraged. But before that, pet owners were routinely taught to treat bad behavior with a yank on the leash or a chain looped around the dog's neck. Food treats were for humans. Before that, dogs were often viewed more as livestock than four-legged friends.
Like T-shirts and child-rearing, dog training philosophies go through generational swings from loose to tight and back again. In Raising America, author (and Slate's book editor) Ann Hulbert reminds us that expert wisdom in the 1920s was to withhold affection from children, and a generation later, to pour it on with a ladle. By the 1990s, there was a call for a return to stricter parenting. Likewise with dogs: Millan and his followers are just bringing back some old-fashioned values.
For two millenniums, from Ancient Rome through the 19th century, it was generally believed that dogs—like horses and, well, children—had a wild spirit that needed to be "broken." In the 1890s, T.S. Hammond, author of Practical Dog Training, lamented that his fellow trainers believed that "all knowledge that is not beaten into a dog is worthless for all practical purposes."
At the same time, breeders in Europe and North America were beginning to organize, anti-cruelty societies were forming, and training began to be approached more scientifically. "Train your dog" first became a well-known slogan during the Great Depression. By the 1930s, a pair of New York-based poodle fanciers named Helene Whitehouse Walker and Blanche Saunders toured the country in a wagon, visiting breeders' clubs and evangelizing obedience as a sport on par with tracking and agility. Saunders went on to become the Cesar Millan of her era. She published the first modern guidebook for dog trainers, Training You To Train Your Dog. Saunders' basic methods were more or less standard into the 1970s. No treats, but it's OK to praise. Look for the dog to do something wrong and jerk on a choke chain around her neck. Use physical guidance to teach things like sits.
Animal behaviorists call methods like the choke chain—correcting errors with painful consequences—punishment. * The most successful of the negative gurus was William Koehler, head of animal training for Walt Disney Studios and the guy behind the dog actors in Swiss Family Robinson and Incredible Journey. His book, The Koehler Method of Dog Training, first published in 1962, was the best-selling obedience title in the United States for two decades.
Today, certain passages in Koehler's book can make for difficult reading. "Hold [the dog] suspended until he has neither the strength nor inclination to renew the fight," he writes at one point. "Once lowered he will probably stagger loop-legged for a few steps, vomit once or twice, and roll over on his side. But do not let it alarm you." We'll try.
Koehler was an effective trainer, as anyone can attest who has watched the canine thespians execute the tour de force that is Incredible Journey. But he was not sentimental. He believed in nipping problems in the bud by bringing the pain. Training was a battle of wills, and it was you or the dog. He believed it was hurtful to our best friend to be too kind—that the greatest of all physical and psychological cruelties was "under-correction."
The generation after Koehler saw a slow shift away from his style. "Like human therapies," write canine behavior experts Dr. Mary Burch and Jon Bailey in 1999's How Dogs Learn, "for the most part dog training has undergone an evolution and moved toward a more positive approach."
To a behaviorist, "positive" simply means a change of emphasis: Instead of correcting mistakes, the trainer focuses on rewarding good behavior, often with food. Mistakes are ignored. In the early 1980s, expatriate British veterinarian Ian Dunbar started advocating such then-unusual ideas as puppy socialization, off-leash training, and the lavish use of food rewards. Dunbar founded Sirius Dog Training in Berkeley, Calif., and later the Association of Pet Dog Trainers, to promulgate the new school of what he called "dog friendly dog training." Around this time, the clicker was popularized by dolphin expert Karen Pryor as a more precise way to tell the dog which behavior, exactly, you are rewarding.
Today, when you trot your dog into most training facilities in the United States, you will probably be taught using the so-called "click-and-treat" method. My own club, the Port Chester Obedience Training Club in White Plains, N.Y., is aggressively positive. It includes on its recommended reading list such feel-good classics as Andrea Arden's Dog-Friendly Dog Training and Joel Walton's Positive Puppy Training Works. And under a title by Paul Owens called The Dog Whisperer, they emphasize this is "NOT to be confused with the book with the same title written by Cesar Milan" (whom they hate too much even to spell his name right).
Millan doesn't use a clicker and rarely pulls out a treat. And he's openly contemptuous of what he sees as the overly touchy-feely bias of too many of his colleagues. In his 2007 book Be the Pack Leader, written with Melissa Jo Peltier, Millan complains: "We've gone from the old-fashioned authoritarian extreme—where animals existed only to do our bidding—to another unhealthy extreme—where animals are considered our equal partners in every area of our lives."
I would argue that Millan's tactics don't represent a full-bore regression so much as a renewed emphasis on the dog's status as inferior. While he does use leash corrections, Millan puts far more emphasis on what he calls "calm-assertive energy." His primary training tools are eye contact, aversive sounds like hisses, and even visualization techniques borrowed from sports psychology. In a laudatory 2006 profile in TheNew Yorker, Malcolm Gladwell compared Millan to a dancer.
Truth is, all these methods can work. Dogs are marvelously adaptive. There are many roads to the rainbow. Rewarding good behavior and punishing bad behavior both have the same end in view: more good behavior. For better or worse—in this generation and the next, no matter what the prevailing wisdom—dogs really do care what we think.
Correction, Dec. 30, 2010: Originally this article incorrectly referred to methods like the choke chain as negative reinforcement. In operant conditioning, the proper term is punishment. (Return to the corrected sentence.)