My dog suddenly acted aggressive towards a child. How to prevent it?

I'm sorry to hear that this happened! How upsetting for you and your cousin. The situation you describe - a child coming up behind a dog and startling it, particularly when food is involved - is an extremely common trigger for bites. Any dog will bite if it feels scared or threatened. Our responsibility as adults is to make sure that these situations don't happen. For safety reasons, I would recommend keeping Max separated from any visiting children from now on to prevent this from happening again. Also, in the future, please don't hit him or scold him for reacting this way - the aggressive behavior was prompted by fear, so punishment will only make him more tense and defensive around kids in the future. This is likely why he growled at your friend once he was back in the house - he was stressed and upset, and already "on-edge" from everything that had happened before. If you want to try and work on this issue through training, I would strongly recommend getting help from a veterinary behaviorist who can evaluate Max in person and help you put together a detailed plan for him. Training for aggression issues is generally focused on teaching the dog to associate good things with whatever he is currently afraid of (such as children, visitors, etc.), and should not involve punishment of any kind. Management is also extremely important to ensure that everyone stays safe, for dogs with any history of biting. You can search for a board-certified veterinary behaviorist in your area here: www.dacvb.org

Hi there. Aggressive behavior towards small children in the home is always very concerning, so I would definitely recommend getting a professional on-board who can help you determine what is causing this behavior and put together a detailed plan to work on things. I can't really give any specific advice without being able to evaluate Kiwi in person and get a much more detailed behavioral history, so the best thing I can tell you for now is to keep him separated from the child until you're able to get an appointment with someone who can work with you on changing his behavior. You can search for a board-certified veterinary behaviorist in your area here, which would be the best options: www.dacvb.org. If you don't have a VB nearby, you could also search for a trainer here: www.ccpdt.org

Hi there. The situation you describe would be a common trigger for a bite. I would recommend getting in touch with a veterinary behaviorist who can evaluate your dog in person to help determine the degree of risk going forward, and help you put together a training plan to work on the problem. In the meantime, no one should be allowed to bother him or approach him when he has a bone or other valuable resource. You can search for a board-certified veterinary behaviorist in your area here: www.dacvb.org

It sounds like you have a dangerous situation going on. This is too big of a problem for a quick answer on the forum, but I will tell you that this is going to take a lot of work and time, and may never end up the way you want it to. I really feel that you need to ask your veterinarian for a referral for a good behaviorist in your area. If this is not someone you can devote some time and likely financial resources to, then you may need consider not keeping her. I am sorry you are experiencing this, I have been through something similar and it is very difficult. In the meantime I would order her a basket muzzle to keep on her when others are around to lessen the likelihood of her injuring someone. Best of luck and thank you for using Pet Coach.

It's not normal for a 4 month old to be scared or aggressive. I would recommend getting an appointment with a veterinary behaviorist (this person is a vet, not just a layperson) if at all possible -- your vet may have recommendations for someone nearby. It sounds like he could have been scared by the tackling incident, but it's still atypical for such a young dog to be aggressive. It would be like your 2 year old threatening to beat you up --- it's just not how their brains work at that age. The behaviorist can assess him and likely give you a pile of exercises to do at home and some medications. In the mean time, or if you can't take him to a behaviorist, avoid anything that makes him scared and hand feed him all his food as "treats" throughout the day as rewards for interacting with the family.

I'm sorry to hear Cooper has been acting this way. If this behavior is sudden and new, a good first step is to schedule a visit with your veterinarian. In some cases, underlying pain or illness can cause a dog to change behavior and suddenly lash out when otherwise they were sweet or friendly. Your vet can help determine if this may be the case. If Cooper checks out healthy, I then recommend talking with a trainer or veterinary behaviorist in person as aggression toward people is a very complex and serious issue which requires professional help in person. You can learn more about veterinary behaviorists and find one in your area with this link: https://www.dacvb.org/page/about

This is question is not something that can easily be answered in this forum. Setting up a consult may be best as there are many questions that would need to be asked and answerd about what happened in the environment leading up to the incident that may have made the dog feel threatened, if there were any warning signs that could have prevented this, and what can be done to ensure this does not occur again.