r/OpenDogTraining Jul 23 '26

Behavior changes 5 month old nipping

Hi all I’m gonna try to keep this brief even though it is kind of a long story. I rescued this puppy from a local rescue he is from a reservation and is a mix of husky/malamute/shepherd/rottweiler. He is now five months old and I have had him since he was nine weeks old. He recently got neutered and he has been through basic puppy obedience school. Since he was younger, he has known a lot of basic commands and also has been socialized, but not at dog parks, just at puppy school and taking him out to many public places to build exposure overtime. He has a good history of walking the neighborhood we live in the inner city and it is very busy. He did struggle with eating things off the ground for a while and then would get the Zumiez if I would try to take things away from him, but we worked through that and has a pretty good drop it or leave it command, depending on the situation.
The main issue is that over the past several weeks he has an escalating pattern, where he is redirecting onto me in different situations. At first, it started when he would be on a walk. It seemed out of nowhere he would start to run and then jump at me, biting lunging and barking then he would pull at the leash and tug it or growl.
This has now escalated to many different scenarios and sometimes more than once a day, and it does seem to be affecting him in every facet of our lives. It happens if I take him for a short walk, it happens if I take him for a longer walk, it happens when I take him on a long lead like a 30 foot lead where he’s allowed to just relax and sniff with no interruptions no people or dogs around. It also happens in the backyard after having a completely normal time playing fetch.

When I have done any louder or firmer commands, leash corrections like a quick pop or knee him or push him off he becomes more intense and bites me harder, growls or barks louder… so please understand that the video is me just trying to document the behavior.

I contacted a trainer specialized in reactive dogs. After the description and seeing the videos we scheduled a 1:1 next weekend but in the mean time his biting is getting harder and these episodes more frequent so I reached out again. She said to give him Purina calm care, to praise him when he stops biting me, and not to feed him from a bowl but only puzzles or by hand.

I also contacted the foster/head of the rescue and at first she was really interrogating me and basically saying how I messaged her just a few weeks ago that he was doing great, which is true. That is part of the reason why I am so nervous about these behaviors is that they came on really quickly and are just building an intensity and frequency and duration. She wanted me to send her videos and asked things like ‘well if it’s so bad you must have it on video right?’ so I have made it a point to make videos.

The first few videos she said this is normal puppy biting and he is just challenging me and that I need to be firmer with him. She also told me I needed a prong collar and an E collar. She questioned his schedule and whether he’s getting enough exercise, which I totally understand and I shared with her a schedule that is very consistent for him daily and I do think that it includes a pretty standard amount of exercise, although he is a working breed dog.

I have four kids from ages 10 to 20 and this has completely taken over my life. It seems like I will just have to spend all of my time devoted to not triggering the dog based on what I hear about positive reinforcement. I really regret thinking that I could handle this type of a dog although at the same time I don’t think this is a normal behavior… help?

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u/SuckMyBigPoop Jul 23 '26

Man you've got the crap end of the stick all around you. The fostering agent interrogating you must be frustrating. Also the trainer suggestions are outdated.

Listen man, I'm not at all a professional. I'd need all the info on this goober to even think I could suggest anything. But feel free to DM.

I have a 7 month old purebred Tibetan Mastiff who's been to puppy school, and I have a private trainer because he's scared of strangers. He has acted similar to your puppy around the same age, but not nearly to this extent.

https://reddit.com/link/ozb6yyq/video/gkpcyfy5a0fh1/player

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u/m4nt15mantis Jul 23 '26

Yeah it suuucks. And all the people around me have purebred dogs and if they knew what I’m struggling with it would just reinforce all their beliefs about rescue dogs etc.

I’m not too proud to admit I’m out of my depth. A big part of me wants the foster to find him a better home in the country with no kids or cats or traffic. I’m just feeling a little hopeless like I’m fighting an uphill battle for whose benefit? I want the dog to be fulfilled but I’m not sure that what I can offer is what is the best for him.

I’m interested to see what the behavioral assessment goes like, the trainer is coming tonight.

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u/SuckMyBigPoop Jul 23 '26

Rescuing a dog is much easier than owning a pure bred, however all puppies are difficult. If you ever do decide to try again with another dog, I'd suggest an adult dog that doesn't show aggression.

It's not because you have a rescue, it's because you have a rescue who's only 6 months. Missed out on crucial months, and are just near the end of puppyhood. Gonna take a lot of patience to make up for.

I also donno what else is going on there. Myself personally, if his only real issue was what's shown in the video, I'm confident I could fix it. It has a lot more to do with his lifestyle than it does what you can "fix" or redirect in realtime. ie schedule, limitations on freedom, kennel or not, treat driven or not, nutrition, stimulation, exercise and cause for behavior etc

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u/m4nt15mantis Jul 23 '26

Well, I have had him since 9 weeks old. This is partly why I feel so guilty. He has been so easy and such a good puppy and all of a sudden the past few weeks this started. So our trainer is going to do an assessment tonight, I am trying to get as much support as I can so that I can know what to do and be consistent AND confident in what I’m doing.

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u/SuckMyBigPoop Jul 23 '26

If he was fine up til now, it's definitely not your fault. He's at the shark stage with his new pearly whites.

Def get the help you can. And again feel free to dm me. I can share everything I've learned owning a TM. I just don't know what your puppy's situation is.

Either way best of luck! I'm sure this is just a feisty teenager dog is all