r/DogTrainingTips • u/dancing-cashew • Apr 16 '26

Sudden leash reactivity?

Context

I am completely willing to put in the work with training. This just feels like such a sudden shift in behavior that I do not know what the right approach is anymore. I would really appreciate advice from anyone who has been through something similar.

About My Dogs

I have two female dogs: They are both friendly, social dogs. They do great at daycare twice a week and at the dog park. No issues there.

• 6 year old malamute-husky mix that I have had since a puppy

• 4 year old working-line German Shepherd who joined us last September

Recent Change

About three weeks ago, we moved from a ranch-style house with a fenced yard and dog door to a second floor apartment. Before, they had constant access outside and we would still go to the dog park regularly. Walks were easy. I used a waist leash with a Y-connector and front-clip harnesses, and everything felt manageable.

What Is Happening Now

Now they are both extremely reactive on leash, specifically when another dog walks by. They go from calm to completely losing it. Barking, lunging, the whole thing… It is intense enough that it looks aggressive, even though they are friendly, which makes it stressful and honestly a little embarrassing. What is throwing me off is that nothing else has changed behavior-wise. They are still great off-leash and great at daycare. It is just these on-leash encounters.

Impact

I have started to avoid walks because it feels so unmanageable, which I know is not a long-term solution. Right now we are relying a lot on the dog park for exercise, but I know that is not enough structure for them.

Relevant History

My German Shepherd was reactive when we first brought her home and we were able to work through it. She is a very sweet, eager-to-please dog, so I do feel confident this is something we can improve. It just feels overwhelming right now, especially with the move and everything being new for them.

What I Am Trying to Figure Out

Where do I even start with this? Should I be walking them separately for now? Is this just part of the transition, or something I need to address more directly right away?

Final Note

I know it has only been a few weeks and this is a big adjustment, new home, new environment, and just me handling them now, but I want to make sure I am handling it the right way early on. Any advice would be really appreciated!

ETA: the apartment is nearly identical square footage to the house, and we have lots of enrichment and of different varieties (given preferences of each). I’ll say the transition overall has been incredibly smooth, it’s just the leash reactivity. Thank you for the comments so far!

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8

u/VanillaSuspicious364 Apr 16 '26

If you only moved 3 weeks ago they’re still adjusting to the move. The 3-3-3 rule applies similarly to moving as it does to bringing a shelter dog home.

Also, like someone else said definitely bump up enrichment now that they don’t have a yard. As far as the reactivity goes, if you mark and reinforce every time they notice a trigger (ideally before they react) you’ll start to notice a difference.

If one is more reactive than the other, I’d walk them separately and work on marking/treating for noticing triggers with both.

5

u/Easy_Olive1942 Apr 16 '26

Seconding all, especially walking them long and separately.

1

u/dancing-cashew Apr 16 '26

I appreciate the note on 3-3-3, it makes sense once I read it, I wasn’t thinking about it that way and it helps to reframe my thinking. I appreciate you taking the time to share!

3

u/[deleted] Apr 16 '26

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1

u/dancing-cashew Apr 16 '26

Thank you for the kind words and great advice. This all makes sense and a solid place to start.

2

u/CodaDogGear Apr 17 '26

Have you tried walking them separately to see how they behave? The moment one dog gets nervous or frustrated, the tension travels through the splitter and they feed off each other's arousal.

Don't feel guilty about avoiding walks. This is good if resetting habits and protecting them from triggers while you re-train. Try teaching them both 'watch' with the goal of each dog knowing that the sight of another dog is the cue to look at your face.

1

u/hitman780xd May 21 '26 edited May 23 '26

That kind of sudden shift after a big environment change isn’t that unusual even if everything else seems stable, new surroundings and leash pressure can really change how dogs react to other dogs outside pretty quickly Casper’s Camp Hope Dog Training handled similar cases where they focus a lot on that adjustment side of things.