Marv the reactive rescue dog’s marvelous transformation from darn dog to perfect pupper thanks to his pawrent’s relentless support and love, dog mom says: ‘He has come so far and I feel so lucky to have found such an amazing, intelligent, and loyal dog.’

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Laurent Shinar • Writer and Editor
Apr 10, 2026 8:15 AM EDT

If you thought that a reactive doggo cannot be trained out of their disruptive habits, then this story will show you just how transformative some good training and patience can be.

Taking on a rescue dog is tough enough. You have to deal with all sorts of gaps in behavioral expectations that the pupper's previous owner has left for you to deal with. A process of acclimatization that can take months in itself. But if that dog happens to be reactive then you have a whole different kettle of fish on your hands. And that is what happened when our canine loving hooman adopted dear Marv. He came to her a wild and frightened mess, but with months of dedicated work to train him out of his bad habits, the pair of them rose from the ashes.

Eventually earning themselves a spot at the group obedience class, a place they had never dreamed of being allowed into considering how Marv used to behave around other dogs and hoomans. It just goes to show that every dog wants to be a good boy or girl deep down inside, even if they do not know how to show it. 
 

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    "Whether it takes months or years, all the hard work will be worth it."
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    Months ago, I adopted my dog Marv. If you read some of my post history, you'll learn that Marv was ag_ ve and incredibly ar s when I first got him. The first two months, he att my sister three d
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    times, and snapped, growled, lunged, and nipped almost everyone else. He had such severe separation a* y that I could not leave the room for even a millisecond without him flying into a frenzy. He wasn't trained at
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    ALL. He didn't know how to even walk up the stairs, let alone sit or potty outside. Safe to say, I was in way over my head. I had trained many "problem" horses in the past, but this was my first dog besides my family
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  • Holy guacamole that is quite the situation to find yourself in. a dog who is that untrained and not a puppy is more than a handful to handle. We cannot imagine what that must have been like to live with day in and day out. The amount of patience and understanding it must have taken just to not give up on the doggo, let alone put in the work and effort to train him is simply unreal. Sure there might be people who go around and save dogs from various situations. But people who are willing to sacrifice so much of their lives for a dog like this are on a whole other level. 

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    Cheezburger Image 10613280512
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    lab growing up. And his behavioral issues were not his only problem. Marv had so many health issues - it was like every part of his body was infected with something. He was 20 pounds underweight.
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    The first two months I was so, so stressed. I cried a lot out of frustration and al.. y. I would never return a dog, but GOD, Mary was probably the hardest first dog I could have found. I was scared he would really hurt someone.
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    I spent every spare hour (and every spare dollar) I had at the vet or working with the behaviorist | found. We trained every, single, day. Sometimes we trained for what felt like every second of
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    every day. I bought more hotdogs to use as treats than I have ever bought in my life. I was researching and reading all the material I could find on aggressive dogs. We went everywhere to desensitize and positively associate.
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    When he was anywhere near another person, he was getting treats. Progress was slow at first, but I noticed Marv becoming more confident and less ar s. He was potty trained in 3 weeks. After months,
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    he learned sit, stay, down, crate, come, go to bed, and (almost) give. He learned leash manners. He was so, so smart - he just had never had anyone teach him. He seemed so willing to learn and so willing to try.
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    Granted, a lot of that was probably just because of the hotdogs. We went to training all the time. He started Pc for his ar .y. We just kept working, every single day. And then suddenly it had been weeks since his last
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  • Wow, this is such an impressive transformation, hot dogs or not. Everyone needs a reward to look forward to when putting in the hard work and effort. And by the sounds of it Marv has been more than willing to give it everything he has to try and meet his new pawrent’s expectations. After all, a doggo needs to learn the rules of life if they want to live amongst other dogs and hoomans. We hope for both of these courageous souls that there be lots more training and hot dogs in their future. 

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    attack. He stopped lunging at everyone (except for squirrels). He would, at worst, growl and nip when he was feeling threatened. I finally could invite friends and family over again. Some days, I was in disbelief how good
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    Cheezburger Image 10613280768
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    he was being. It was like he was a completely different dog sometimes. We got approved to start group obedience class a few weeks ago - at a training facility that wouldn't even take us in the beginning for private lessons
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    because they didn't have a trainer to work with his aggression. He had his first playdate with another dog a few weeks ago and he did great. He can now go to the dog park, and he is practically perfect.
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    Just today, he went to his first doggie daycare interview and HE PASSED. I have never been more proud in my entire life. He has come so far and I feel so lucky and fortunate to have found such an
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    amazing, intelligent, and loyal dog. I have never felt so loved in my life. I am so happy that all of our hard work is paying off, I could actually cry tears of joy. Sorry for the sappy post. I know I'm not
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    the usual case - and many dogs are much worse than Marv and need far longer to improve - but there is a light at the end of the tunnel. Whether it takes months or years, all the hard work will be worth it. I just wanted to
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    share our story for anyone else going through this!
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dogs transformation marvel pupper dog mom rescue dog reddit story perfect pawrents love dog story support reaction
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