Resource Guarding – Dog growls to protect his bone

How do you safely take a toy or bone away from a dog?

Does your dog exhibit aggressive behavior when he has a bone or toy? This issue is called Resource Guarding and if not addressed, can escalate into dangerous behaviors like biting.

From an evolutionary standpoint, dogs developed this behavior for obvious reasons. If a dog didn’t protect high value objects like meaty bones from theft, it would starve, pure and simple!

In practical terms, that toy, bone, or high valued object is rewarding to the dog, and having it taken away is an undesired outcome.

Forcing the dog physically to give up the toy will cause this problem to escalate, up to and including severe biting. So how can we address it safely?

As a positive reinforcement dog trainer, you must make the behavior of giving up the toy or bone a rewarding behavior. This is commonly done by trading objects with the dog with food – after all, the dog can’t guard a toy while simultaneously taking food from your hand.

Furthermore, if every time a toy or bone is given up and it’s put away, there’s no incentive for the dog to ever give up the toy, so its important to trade for food, and then return the toy to the dog. This creates a win-win situation where there’s no downside at all to giving up the highly valued object.

If you trade for food, and return the toy enough times, you’ll find your dog actually looks forward to releasing the toy as you approach. Its at this time we can put the behavior on cue with “Out” or “Drop It”.

If your dog has developed a serious case of resource guarding, where he starts growling and even biting as you approach, it is absolutely critical that you get professional help with this work as the risk of eliciting a dog bite is very high.

Whatever you do, don’t force the dog to release the object. This only teaches the dog that he was right to guard the item in the first place, and will increase the severity of the guarding and increase the severity of his aggression response. He’ll progress from guarding looks and body language to growling, and ultimately may resort to biting to protect the object.

Start early with your puppy to practice trading. If your adult dog is growling or biting, get help right away with a trainer or behaviourist that uses positive reinforcement to teach the dog that giving up toys is a fun and rewarding game.

18 Replies to “Resource Guarding – Dog growls to protect his bone”

  1. Thanks so much for this, we were seriously worried about our puppy after some uncharacteristic nastiness. Practiced drop and it worked great. Need to be consistent with it but she’s doing well so far. We tried time out which did get her to calm down, but nearly got a nasty bite in the process. This worked much better!

  2. I know this is an older article but I’m glad I found it. My 8 month old puppy just started to guard an edible chew. She had never been aggressive about it before but just suddenly started to growl and bite at my son when he touched her while she had it. She did the same to me and I was very surprised. We had started to trade objects she wasn’t supposed to have for a high value treat but I never thought to do that with her edible chew. I think that’s a great positive solution. I don’t want this to escalate.

  3. I am fearful of the outcome for my dog. She is a little over a year. If she finds a food bone or a treat bone she is in full attack mode and has bitten my nephew. With her bowl food I’m not sure if she will attack I have rubbed her and such while eating. The other thing is she will miss meals, her choice. She is fearful sometimes stressed and anxious lots of changes around here but I try to keep her things a routine even when we travel. Please help me. There are other underlying issues as well I can’t even teach her to have an attention span longer then a few seconds.

  4. I just adopted a 2 year old Bernese Mt dog and he has growled at me when I want him to move, like he got in the front seat of my car and I nudge him to get in the back and he growled. Or I tried to make him go in another room with his toy and he snapped at me. Ive only had him for 3 days but I dont know what to do. Should I out him down ?

      1. Not a solution . disappointing answer. Train the dog. All dogs are trainable. It is like giving chips away because it misbehaving

    1. Please don’t put your dog down someone can take care of him if it’s too stressful and too much for you just give him to another home I know it can be too much to bare sometimes and that’s OK but someone will care for him.

  5. Not a solution . disappointing answer. Train the dog. All dogs are trainable. It is like giving chips away because it misbehaving

  6. Not a solution . disappointing answer. Train the dog. All dogs are trainable. It is like giving your child away because it is misbehaving

  7. Ok, so my puppy is six months and he is a little aggressive with his bones, we get near and he scrunches his snout and shows his teeth, and if we actuall get close enough he will nip and sometimes actuall get us. I try coming close with one of his treats but he just thinks we’re comomg to take away his bone, we’ve done this thing where we tuck his skin under his teeth real quick and he stops biting and lets us have it. Is this a good strategy?

  8. omg we have a English bulldog 11 moths old just started giving him a bone treat and he just gets freaked out with it scarey I had to hose him down and also take away when I give him a treat.. have grand childred and nieces and nephews so scared for them to be around also makes me nervous please help….

  9. My sister dog hides his bone. Then wants his sisters bone. If he can’t get it then he starts a very bad fight. Please help us found out what we can do please

  10. We have adopted a rescue dog, who was a street dog for some time. She is the sweetest, most loving dog. The only problem she seems to have is bone/toy aggression. We have two other rescues that are feeling the brunt of her aggression. We are taking every precaution to avoid the fights, they still continue. Bones are not given all together. Winnie is given her’s in her kennel. We had an incident yesterday when she was given a bone, alone with me outside. The other dogs came out, after she allowed me to take her bone, using the treat switch method. Our other dog was smelling where she had been laying with her bone, and Winnie attacked our other dog.
    Any help offered to remedy this will be welcomed. We love our dogs and want the best for them
    Thanks in advance

  11. I had a beagle that I dearly loved,and had to rehome him last year which was heart wrenching for me,he eventually bit my son on his face coz of food.we had him 2 half years tried to fix but because of consistency of ALL the family wasn’t a.ways carried through it never worked,had a behavourist once but couldn’t afford 200 quid again so went to a trainer and his way was harsh and very different

  12. So my dog does have a small problem with resource guarding. Especially when we give her bones and stuff but this is a recent trait she’s starting to develop. Sometimes it makes me scared I know me being scared isn’t good and probably makes things worse. She’s so sweet and I don’t know why she is doing this now. I had no idea to train her when she was younger because it wasn’t a problem then. Any advice would help. Thanks

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