This article first appeared in Dogs Life Magazine May/June 2005 and is reproduced with the kind permission of the author, Karin Larsen Bridge, part owner of Get S.M.A.R.T (Successful Motivation And Reward Training) Dogs in Sydney - a dog training school specializing in positive training classes for pet dogs. She is a Delta Accredited Canine Good Citizen (TM) Instructor and writes and lectures frequently on dogs and dog related issues such as positive training methods, behavioural problems and responsible pet ownership.
If you've just got a puppy, be warned you are likely to lose something of value in the not too distant future - because puppies love and need to chew.
Why do dogs chew?
In most cases dogs chew because it is a perfectly normal way for them to explore, investigate and play with their environment. Dogs don't have hands. If something smells interesting, the next step is popping it in the mouth to check out the taste, texture and rip-ability. Young kids do much the same but while the oral stage only lasts a short time in humans it can go on for a lifetime in dogs.
Most owners appreciate a young puppy's need to chew as their baby teeth drop out and are replaced by permanent teeth. However few realize that this process which begins at around four months may take another five months to complete. Even after this time the adult teeth need time and exercise to settle into the jaw. A more realistic expectation is that dogs can be expected to be enthusiastic chewers for at least the first eighteen months of life and many will enjoy doing so to age three and beyond.
Prevention is better than Cure
It is far easier to prevent problem chewing than to try and train against such a normal and self-rewarding behaviour.We don't really want to stop our dogs chewing; we simply want to re-direct the behaviour on to designated dog toys. Here are a few preventative ideas:
Punishing your dog long after he has destroyed something is as silly as punishing your dog for barking hours after he has stopped.
Even though your dog may look 'guilty ' when you come home to destruction, he is reacting to your angry body language and not knowledge of what he has done wrong (a human value judgment). Punishing your dog so long after the event will only cause the dog to become fearful and may contribute to more serious stress-related destructive behaviours.
If there is an area where your dogs chewing is really a problem, such as stealing food from a counter top, you can try remote punishers such as shaker cans or snappy traps which make a loud noise when your dog sets them off in an attempt to reach a desired item.
The advantage of these devices is that the punishment is applied at exactly the right time (immediately after the behaviour) and is not in any way associated with you, or dependent on your presence.
For dangerous items such as electrical cords which cannot be removed, you can try one of the many over the counter preparations to deter chewing such as Bitter Apple or Oil of Citronella. Different substances may be effective on different dogs.
It is better to Give than to Steal.
It's great to teach your dog to retrieve and one of the best ways to start is to praise and reward your puppy for putting anything and everything in his mouth.
Puppies that have been punished for picking things up are often reluctant to learn this very useful skill later in life. Don't punish your puppy for picking things up as this behaviour only becomes a problem if your puppy won't give back what he has found.
Regularly check what your dog is chewing including his special toys. Either take them away, look at them and give them back or swap them for something even better such as a delicious treat. This will prevent your puppy learning that:
a) you don't think his toys are good stuff because you never take an interest in them b) when he finds good stuff (anything but his toys) you try to take it away and c) if he runs away with good stuff a great game of 'catch me if you can' can be initiated!
Stealing and hide-away chewing are easily cured by doing lots of swaps, effectively rewarding your puppy for chewing in front of you. The next time your puppy has your slippers quietly say 'Can I have a look?' and swap them for a treat. Before long, rather than chasing your pup around the house you'll be able to sit back and ask 'fetch me my slippers'!
More serious, destructive chewing tends to be seen in older dogs. In some cases, the reason may remain an individual dogs personality - simply finding excessive chewing fun and self-rewarding.This is most commonly seen in energetic working dogs without a job to do living in an under stimulating environment and determined to create their own work.
However in many cases general destructiveness is a symptom of a deeper behavioural problem such as:
Occurs only in the owner's absence and usually commences within the first 30 minutes of the owners leaving.
Fears & phobias such as fear of thunderstorms, fireworks, etc.
Territorial aggression/redirected frustration
In all of the above cases the destruction is likely to be intense and may be directed as a desire to either get into or out of a house, crate or other confined area. The dog often attacks solid objects such as doors and fences rather than soft objects such as cushions or books. If your adult dog is exhibiting any of the signs above, a full behavioural history needs to be recorded and considered before deciding on possible treatment.
Keeping it in perspective. In most cases excessive chewing is just a normal, if annoying dog behaviour which reduces as dogs grow older. It is important to keep a sense of humour and realize that your dog is not being spiteful, angry, rebellious or malicious when he chews up your favourite book or shoe.
Even though he may show a preference for particular items belonging to particular people (smelly shoes, socks, undies and remote controls are common choices) its probable your dog ate it just because like Mt. Everest - it was there!