Object Guarding – Canine Possession Aggression
February 13, 2009 by Dog Service Network
Filed under Aggression, Behaviors, Guarding / Territorial
Canine Possession Aggression……..object guarding, this is the act of aggressively protecting objects such as toys, pigs ears, rawhide chews, bones, or articles that the dog has found or stolen, such as socks shoes underwear tissues and human food.
The ears going back will be part of typical body language relating to this behaviour. The dog then will go into a crouch over the object, displaying a whale eye, that is the head turned away but the eyes are swivelled back towards you the perceived threat to his possession, the whites showing, you may also find the lips are slightly pulled back almost in a grin. Look at pictures of whales and you will see why whale eye gets its name. Read more
Different Types of Aggression
January 11, 2009 by Dog Service Network
Filed under Aggression, Behaviors, Guarding / Territorial, Health
Aggression is one of the main reasons that dogs are euthanised or rehomed; at least 30% of all dogs in rescue centres are there because of the incidence of aggressive behaviour in one form or another. It is actually unusual to have a dog that is aggressing to have just one type of aggression; most dogs have more than one of the following types of behaviour.
It would be prudent, before embarking on any program of aggressive behaviour modification, to rule out any medical reasons for that behaviour, especially if there is a sudden change in the dog’s temperament. Their are some fifty-odd different medical reasons why a dog may be showing aggressive tendencies, these range from Pain to Thyroid Dysfunction, Epilepsy to Hypoglycemia and Diabetes. The following is a list of the more common aggressions and why they may be occurring. This is only a part of the total types. Because of the constraints of space it can only be a fleeting reference. I have covered fully in previous articles in DM “Food Guarding “and “Object and Possession Aggression” Read more
Bone or Toy Guarding
January 1, 2009 by Dog Service Network
Filed under Behaviors, Guarding / Territorial
I find this problem mainly in the gundog breeds dogs such as Labradors, Springers, and Golden Retrievers but have also come across it in Shar Pei’s Staffs and English Bull Terriers, and most of the guarding breeds.
I think genetics, and early learned responses whilst still with the mother and siblings can have an affect on this behaviour. If we really think about it object, toy, or bone guarding is a natural action and reaction to a situation where possession may mean survival. The problem we have is we perceive it as unacceptable or dangerous behaviour.
The way the situation is handled at the outset will have an enormous effect on the overall outcome, and in some cases determines the dog’s fate. Head on aggression and punishment in this scenario is both dangerous and pointless.
Try this:
- Remove the cause of the dog’s guarding behaviour. If it’s a specific type of bone or treat, the simply make sure that you do not stimulate this behaviour by never giving those objects again.
- Basic obedience training can help by teaching either: “Leave it” “Drop” or “Dead” and use various objects such as shoes, socks, tissue this is always best started when the dog is a puppy. I also never play tug with my dogs accept in very special circumstances ie a timid or shy dog, As I believe this can also stimulate a guarding reaction.
- Give you dog something you can carefully remove from a distance, for instance you could tie some string round an object or bone then when the time is right use the trigger words “Leave it” “Drop” or “Dead” At the same time as removing the object with the string, immediately treat the dog puffed jerky, cheese or dried liver is ideal. Then give the object /bone back and repeat the exercise
- Trade with him, a barter system of swapping objects can help in this case. He picks something up you offer him a tasty favourite treat in return, then give the item back to him. Do not treat or praise him whilst he is growling or threatening, as this can be seen as praising the
- To punish object guarding either verbally or physically will probably only serve to remind him that he was right not to give up the object and will probably lead to you being bitten and he/she being rehomed or worse still put down. Remember growling is a warning, a threat that he is not happy with a situation, if overtly challenged then he may feel it necessary to back it up with an attack.
This can only be taken as general advice and cannot replace a behaviourist who is experienced in aggression, and these types of behaviour, Object guarding in isolation may in some cases be easily cured, but coupled with other aggressive or dominant tendencies may point to a much more serious problem The tips above will at least get you started in the right direction, but further coaching from a professional may be necessary and judicial.
© Copyright: Stan Rawlinson (Doglistener) one of the leading Dog Behaviourists and Obedience Trainers in the UK. Who has owned and worked dogs for over 30 years, starting with Gundogs then moving on to the behavioural and obedience side of Pet Dogs. He now has a successful practice covering London, Surrey and Middlesex. Visit his Web Site for more information and details of his work. www.doglistener.co.uk
Food Guarding
January 1, 2009 by Dog Service Network
Filed under Behaviors, Guarding / Territorial
We work very hard training our dogs to fit into our lifestyle and our family unit, we think we have done great, then just as we are congratulating ourselves on a job well done the growl starts, it may be as we pass the bed, food bowl, or pigs ear, or even as we remove a toy or tissue.
This is a common problem, often called food guarding, or resource guarding. In reality it is a natural innate tendency for dogs to protect what they perceive as theirs. Possession to a dog is 9/10ths of the law, some dogs will resource guard anything, and that includes us.
This happened to me recently. Kai my white German Shepherd, they are also known as the Swiss Shepherds, he is about 13 months old, lovely temperament nice nature, growled as I walked past his food bowl. To say I was shocked would be putting it mildly. I have never owned a resource guarder or possessive aggressive. I have treated dozens, but never owned one.
Kai is a rescue who had five homes in the first 8 months of his life before my daughter who was dog walking him thought that he should join our extended family. 5 homes!, not exactly the best of starts, he had a bit of baggage but nothing that a bit of TLC and positive reinforcement could not put right.
Unfortunately, I had no impact or influence on his previous owners, or what they did or believed with regard to feeding, possessions and training. The myths and beliefs that surround this common problem are many fold. There is the “let him know who is boss brigade” and the “if he had done that to me I would have belted him” Others that will tell you he is dominant. Dominance and dominant behaviour is a somewhat outdated term in modern canine behaviour therapy. It is too easy and simplistic to label everything as a bid for power and control. The term suggests that the dog is personally threatening you in a bid for top dog slot. Which I assure you is not the case with possession aggression.
Jean Donaldson a US based behaviourist has written a book called * “Mine” a guide to resource guarding in dogs. A practical how-to guide on resource guarding/aggression – food bowl, object, bed, crate, owner, guarding. Though written primarily for trainers with the owner seen as the third party, it is still an excellent book; in it she lists a number of myths and untruths.
- Resource guarding is the result of giving a dog too many privileges
- Resource guarding behaviour is abnormal
- Resource guarding is driven largely by genetics therefore cannot be altered
- Resource guarding is a symptom of dominant and naturally aggressive behaviour
These beliefs/myths probably get more people bitten every year than probably any other single behavioural problem I encounter. The belief that the dog is being disloyal and biting the hand that feeds it is unfortunately commonplace, once again *2 anthropomorphism raises its ugly head. This problem is also one of the key reasons why some dogs are euthanised.
Back to young Kai. When he growled, (just a low almost subliminal rumble, but a subtle threat no less). I did not react or even look at him nor chastise him in any way. To challenge him at that time would have suggested that the growl wasn’t sufficient to warn me off, so lets up the anti and perhaps a snarl or a snap would be in order. I am of the belief that violence begets violence, therefore why challenge if there is no need to.
I waited until his next feed time; I feed my dogs twice a day therefore it was that evening. Instead of using one bowl, this time I used two. I prepared his food as normal in one bowl, and then got him to sit and wait. I then put the empty bowl down.
The look of confusion on his face was classic, he looked round the bowl nudged it to see if his food was underneath then sort of semi collapsed and just looked at me totally bemused. It was at that time; taking a long handled wooden spoon, I tossed a small portion of his food into the bowl. The reason for the spoon was if he were to grab at anything, he would grab the spoon and not my fingers.
I proceeded to feed the whole meal in spoonfuls, what I was telling him was that by me getting access to his bowl was a condition of him being fed., I continued with this method for three days. Sometimes this may take much longer depending on the severity of the guarding.
After the three days, I could tell by his posture and body language that he was relaxed and comfortable with me near his bowl. I gradually decreased the distance between myself and the bowl on every spoonful until I was standing next to it. I then started to put a small amount of his food in the bowl before putting it down rather than spooning it in, then gradually increased the amount over a few days until I was putting all the food in at one go.
Once I had reached this stage, I started adding a very tasty titbit whilst he was eating, I usually use a chunk of cheese or frankfurter, I started this from a little distance away and gradually decreased the distance. What he learns during this exercise is your approach to the bowl is no threat, in fact quite the opposite it is positive as it means he is going to get something really special and tasty.
This is a positive reinforcement technique that requires no aggression, threats, or force; these rarely if ever work in the case of possession aggression. You must make sure your dog is relaxed at all times, if you hit a problem then you have gone to far to fast, go back a couple of stages and work back up to the area where the problem or behaviour was being displayed, take your time there is no need to rush, its not a race.
If I wanted to analyse why Kai growled in the first place I would only be guessing at the trigger. Without talking to all the previous owners to see what they had done then its pure conjecture, though I can imagine a number of possible scenarios. As an educated guess someone probably thought it was the right to take his bowl away whilst he was eating, just to show the dog that he could, this can often create a seed of doubt in the young dog’s mind that his food could be stolen, and he may therefore start to feel threatened or uncomfortable when you are in close proximity.
This seed of doubt could germinate with the onset of maturity and could blossom into full-blown food guarding. If I had lashed out or acted differently to the first threatening growl then things may have turned out very differently. As it happens Kai has never growled or showed any inclination to guard since.
If you are training a puppy not to guard then start training him not to touch the food until you give permission, to achieve this start with the pup on the lead. Put the food down as normal, then as the head goes to the bowl give a slight check on the lead and say “Leave It” this may take a few checks. Make sure this check is really light and gentle, then as the dog looks to you for permission, immediately praise by using a trigger word such as “Good” or a Clicker and treat with a tasty titbit then say “Take It” or “OK” this is the release command.
Continue with this training until you can do this whilst off lead. The object of this exercise is to train him not to touch on command, once you have done this you can then stop him eating on command by using the “Leave it” . Once you have reached this stage then occasionally approach his bowl and put in a tasty treat, he should never have, doubts that your proximity to his bowl is positive never negative.
Stan Rawlinson May 2005 ©
Please do not distribute this article in any media without prior permission.
Stan Rawlinson.
Dog Behaviourist & Trainer
www.doglistener.co.uk
enquiries@doglistener.co.uk
H 0208 979 2019
M 07976 153161
© Copyright: Stan Rawlinson (Doglistener) one of the leading Dog Behaviourists and Obedience Trainers in the UK. Who has owned and worked dogs for over 30 years, starting with Gundogs then moving on to the behavioural and obedience side of Pet Dogs. He now has a successful practice covering London, Surrey and Middlesex. Visit his Web Site for more information and details of his work. www.doglistener.co.uk
Object Guarding
November 14, 2008 by Dog Service Network
Filed under Behaviors, Guarding / Territorial
While out walking Bosco the beagle, you scan the sidewalks and streets with skills honed from years of living with an expert garbage monger. As you pass the local butcher shop, the man at the counter offers you some beef marrow bones, but you decline. You’re almost home free when a tennis ball bounces across your path. In one fell swoop, Bosco seizes it in his mighty jaws and growls, “Mine!”
Food guarding, a form of canine possession aggression (CPA), was covered in the previous column “Mine!” In this one we discuss object guarding, the act of aggressively protecting toys, chewies (especially rawhide and beef marrow bones), and stolen objects such as shoes, underwear, and human garbage.
Food Guarding
November 14, 2008 by Dog Service Network
Filed under Behaviors, Guarding / Territorial
Resolving Food Aggression
Does your sudden appearance in the kitchen at your dog’s mealtime elicit a glare and a growl? Does a gift of rawhide or marrow bone send your usually mild-mannered canine diving under the nearest coffee table while snarling, “Grrr, mine!”? If these scenarios sound familiar to you, your dog is suffering from canine possession aggression (CPA), also known as food or object guarding.
The Trouble with Kibbles
In most cases of CPA, the dog no longer views you as the provider of good things, but rather as the scoundrel who might relieve him or her of hard-earned treasures such as meals, treats, chew toys, or, in some instances, forbidden objects such as shoes and gloves. If you remove these items as a punishment when he growls, it will only serve to further convince your dog that his suspicions about you were right all along.

