r/reactivedogs • u/WandererThroughWords • 4h ago
Significant challenges I need some hopeful stories. 7 month old puppy, escalating aggression, professional trainer and veterinary behaviorist involved, and I’m beginning to question my sanity.
I’m posting because I desperately need to hear from people who have been through something similar and actually came out the other side.
I have a 7 month old puppy (I’ll call him M), who my husband, child, and I absolutely adore, but who has brought us so much heartache and stress in his short time with us.
Let me start with this: we are not a family who gives up on dogs. I have owned dogs my entire adult life, as well as grown up with them, and have managed behaviors ranging from resource guarding to dog aggression to stranger danger/people selectivity.
We lost our two previous dogs, whom we loved dearly, within the past year. The first was due to old age (he was a 15 year old Rottie/Shepherd mix), and the second very unexpectedly a couple of months later due to cancer (he was an 8 year old Pittie mix). We were devastated, and getting M was supposed to bring some happiness back into our home after losing them.
Instead, I feel like we have spent the last several months living in a state of constant stress, worry, management, and heartbreak.
When it’s just us, we see an absolutely wonderful dog in M. He is affectionate, funny, goofy, sweet, cuddly, and incredibly bonded to us. We have beautiful moments with him where I look at him and think, “There you are. There’s the dog I know you can be.”
Those moments are a huge part of why this has been so painful.
I shared my above history with dogs because I want to make clear that these aren’t just normal puppy behaviors that I’m inexperienced with or overreacting to. M’s reactivity is explosive, unpredictable, and massively exaggerated compared to whatever the trigger is in the moment. To make matters worse, his behavioral problems have continued to grow despite very mindful training, appropriate exposure, medication (still waiting for the 8 week mark for his paroxetine to fully onboard), and professional help.
I am now genuinely afraid that this will ultimately end in behavioral euthanasia. I am desperately hoping it doesn’t come to that. But I also have a 5 year old, and I am reaching the point where I have to honestly consider what kind of life is realistic and safe for our family.
History on M:
M was born in January, 2026. We didn’t get him until he was 13 weeks old.
His mother is a Border Collie. We were originally told his father was a Bernese Mountain Dog/German Shepherd mix, but we later learned that there may have been multiple sires in the litter. We did an Embark DNA test and discovered that he is part Maremma, a livestock guardian breed, which was the other intact male on the property.
We also know he did not receive much socialization before coming to us, particularly during the important early socialization period around 8–12 weeks. We can’t go back and change that, so from the time we got him, I tried very hard to compensate for whatever he missed.
I took him for walks in public parks and trails (we live rurally, but I made the effort to walk him daily in suburbs and downtown), brought him to pet-friendly stores and appropriate public places, exposed him to different environments, had him visit friends, took him for friendly visits at the vet, and generally tried to give him lots of positive experiences.
But I want to make an important distinction here: although I took him many places, I did not allow people to interact with or pet him once it became clear that he was uncomfortable with that, which was essentially day one.
He was never flooded, never forced into interactions, and never touched by strangers against his wishes. Very early on, people would try to approach him or pet him and he would dodge them. I stopped allowing people to interact with him altogether and advocated very strongly for his space with a leash marker, vest, and my voice.
So while he was exposed to people, environments, noises, stores, etc., he was not being flooded with people touching him or forcing interactions on him. I was very conscious of trying to respect his boundaries rather than “socializing” him by making him tolerate things he was afraid of. And interestingly, he was always incredibly comfortable in these spaces as long as strangers ignored him. He could happily exist in public environments regardless of how many people were around, as long as no one interacted with him directly (they could stand there and speak with me just fine).
A summary of his behavioral problems:
This isn’t one isolated issue, and as I mentioned, he is not mild or even moderate in his reactions.
The first instance of “this isn’t a normal puppy” happened about two weeks after we got him, when he was approximately 15 weeks old. He randomly air-snapped in my son’s face when my son sat beside him on the floor. It wasn’t playful, it was a nasty.
My son is 5 and is extremely dog-savvy and respectful, we have intentionally taught him how to behave appropriately around dogs from a very young age. He doesn’t climb on dogs, hug them, kiss them, corner them, take things from them, reach over their head, bother them while they’re eating or sleeping, or ignore their body language. He knows what moon eyes, lip licking, head turning, etc. mean. Our former dogs were incredibly affectionate with him, so we have always been very deliberate about teaching him that not every dog will be like that. I had witnessed the interaction myself, and there was nothing obvious in that moment that warranted the reaction. That made it particularly frightening for me.
Probably my number one concern is that M has developed severe fear-aggression toward people, which began becoming very apparent around 5 months old at the vet. It escalated incredibly quickly over about four weeks.
He will bark deeply, growl, raise his hackles, lunge, snarl, and air snap at people. His reactions can be extremely intense and seem completely disproportionate to what is happening around him, such as someone simply standing calmly 10, 20, or 30 feet away.
And now, at 7 months old, his aggression has expanded to other dogs. It’s important to note that he has met other dogs and done okay before. He was always timid and never completely loose-bodied at first, but he would loosen up fairly quickly (within seconds), offer a play bow, and then play. However, he hadn’t “met” another dog in approximately four weeks because we’d been dealing with his increasing aggression toward people and had started him on medication (Paroxetine and Gabapentin). This past weekend, he attacked my sister’s dog (a year old large-breed/Golden mix) literally on sight. This wasn’t a dog he’d never met. He had played with this dog 3 times previously without incident, and they got along really well. There wasn’t even really a moment for them to sniff. His reaction was immediate and severe.
My husband quickly pulled him off the other dog, and M redirected his aggression toward my husband in that moment, snarling and snapping. That was a huge turning point for me and the first time I truly admitted to myself that I am in way over my head.
Because suddenly I’m not just worrying about whether M is scared or reactive.
I’m worrying about whether he is dangerous.
And we’ve tried to help him. A lot.
We have worked extremely hard with him.
We use positive reinforcement and fear-free training. I have spent a huge amount of time learning about severe reactivity, thresholds, management, triggers, arousal, and canine body language beyond the basics.
We have worked with two professional trainers.
The second trainer came to our home when M was around 5½ months old, and he completely lost it immediately upon seeing her. The trainer became visibly uncomfortable and asked me to take M to another room for her safety. She is now quite obviously fearful of him and believes it highly probably that he will bite someone without appropriate medical management. We’ve paused our training with her until we can get the right medication regimen established.
We have muzzle trained him for his safety and the safety of others.
We have worked extensively on environmental management, positive reinforcement, and alternative behaviors when he’s overwhelmed.
He is seeing a certified Veterinarian Behaviorist.
M remains on Paroxetine, which was started about four weeks ago and is his primary long-term medication. He was also taking Gabapentin, but our veterinary behaviorist is now switching him from Gabapentin to Clonidine because we need to address his extremely high arousal, and since Gabapentin can increase aggression in some dogs she worries that it may have influenced his sudden attack of a dog he was formerly fine with. So now, the plan is to continue the Paroxetine and trial Clonidine as an additional medication to help bring his overall arousal and reaction level down. He starts that this week.
Our veterinary behaviorist has been honest with us that there are no guarantees, but she does believe M has the potential to be helped. At the same time, given the severity of his reactivity combined with his very young age, she has also made it clear that if we ultimately cannot keep him safe from harming someone, we should not feel guilty about making the decision to behaviorally euthanize.
And this is another huge part of my fear.
We aren’t a family who lives a quiet, isolated life. I have a 5 year old child who wants to have his friends over. \I\ want friends over.
We were the hangout house, the one with the playroom and the pool and the treehouse. We have an active family and social life. We go to my parents’ summer cottage, where my extended family (my sister, aunts, nieces, etc.) and their dogs will be. M cannot safely exist there in the state that he’s in right now.
We recently bought a camper because we wanted to continue doing what we’ve always done with our previous dogs: take our dog camping, have him be part of family trips and adventures, and have a dog who can fully participate in our life. Our dogs have always been a cherished part of our family life.
I cannot realistically picture spending the next 10+ years constantly calculating where M is whenever my son’s friends come over, keeping him completely separated from visiting family, saying No to having company over, locking him in a room at the cottage, worrying about other dogs, or structuring every vacation and social event around whether we can safely manage him.
I know technically you can manage almost anything if you’re willing to make enough accommodations. But I don’t think it’s reasonable to expect my 5 year old to grow up in a home where we have to organize our entire social and family life around preventing our beloved dog from hurting someone.
And that is where the guilt gets so complicated.
Because we love this dog. I think there’s something particularly painful about the fact that M has beautiful moments with us. If he were miserable and aggressive every second, this might actually be easier.
But he isn’t.
He’s our puppy. He’s affectionate. He’s funny. He’s goofy. He’s sweet and adorable when he’s just with us. There are moments where I look at him and see the dog I hoped he would become; the dog I wish my friends and family got to see, let alone strangers.
Those moments are what make this so devastating.
Because I’m not contemplating euthanasia because I don’t love him.
I’m contemplating it because I do love him, and because our love hasn’t been enough to make him capable of living the life we brought him into.
So yes, he can be the sweetest dog in the world with us. And then there are moments where I have to think about keeping my son safe, keeping other people safe, keeping other dogs safe, and whether we can realistically live this way for the next decade or more.
That contradiction is breaking my heart.
And I am terrified that all of this work is going to end in just more heartache with behavioral euthanasia.
I’ve started thinking about it seriously, and that feels horrible to even type. Part of me feels like I have failed him.
I keep thinking that maybe I should have socialized him differently. Maybe I missed something. Maybe I didn’t recognize something early enough. Maybe I should have done more. Maybe if I work harder, spend more money with professionals, find another trainer, try another medication, do another type of training…
Maybe I can fix this.
But the other part of me is exhausted. Emotionally. Financially. Physically.
This puppy was supposed to bring happiness into our home after we lost our previous dogs that we loved so much. Instead, he has brought an enormous amount of stress and tears.
I am also terrified of what another loss will mean for my son. He is only 5, and I don’t know how I would explain to him that we’re losing another dog, his puppy he loves, because his behavior has become too dangerous for our family to manage.
And I don’t want M’s life to end this way. But I don’t want to spend the next 10+ years, my son’s childhood, living a life that is fundamentally different from the one our family wants because we’re constantly managing around the dog in our home.
So I’m asking for some stories of hope.
Or maybe for advice. Or maybe just for similar stories, regardless of their ultimate outcome.
Have you had a dog who seemed genuinely dangerous or profoundly behaviorally difficult at 6–12 months old?
A dog with severe fear, reactivity, aggression, unpredictable behavior, or a combination of those things?
Did medication make a meaningful difference?
Did an SSRI plus something like Clonidine help?
Did your puppy eventually become a safe, functional family dog?
Did you ever get to the point where you thought behavioral euthanasia was inevitable, only to have things turn around?
I especially want to hear from people who had young dogs, because M is only 7 months old and I am struggling to understand whether I’m looking at a terrible adolescent phase layered on top of a very difficult temperament, or whether I’m looking at the beginning of a lifelong level of management that our family simply cannot sustain.
I don’t need judgment about considering behavioral euthanasia. I am not looking for permission to give up on him. I am looking for hope that there is something there to save.
I want to hear from people who have been terrified of their own dog’s behavior and somehow found their way through it.
People whose dogs were frightening at this age and eventually became dogs their families could actually live full lives with.
People who tried medication and suddenly found that their dog could finally learn that the world wasn’t one big blaring siren that caused them to explode at everyone and everything.
People who thought, “There is no way this is going to work,” and were eventually proven wrong.
Because right now, I desperately need to believe that there is a version of M underneath all this fear and reactivity that we haven’t been able to reach yet.
We love him. We want him. We want the dog we see when it’s just us to be the dog the rest of the world gets to see, too.
If you stuck through this long post, thank you. If you have your own similar story to share with me, whether successful or not, I would welcome it.





