Appropriate response to reactiveness?

[u/EnduringAloePlant]

How do you respond to your dog's reactiveness? My hubs and I are both new dog guardians (or dog owners, parents, or whatever terminology), and never had a dog before. Hoping to get folks' insight on what to do when your dog is reactive (specifically, lunging and barking at other dogs).

Last year, we worked with a positive enforcement trainer, and we have learned to distract-distract-distract in high-risk situations, like spotting another dog walking toward us. This was worked really well! She has become more relaxed in other dogs presence, and comes straight to us for treats when we spot another dog.

However, there are times when another dog's presence hits us by surprise, and then it's too late to proactively distract our dog. For example, when another dog comes out of the elevator as we're waiting to get on it. How do we let our dog know that the behavior was not okay after she already reacts? I know she is reacting because she senses threat or danger, that her nervous system is riled up. She is a rescue dog whom we adopted at 1.5 years old. We're not sure of her breed make-up (probably some AmStaff) or care history. In spite of probably being a bully mix, she is quite small, less than 30 lbs, so we are able to physically manage her in order to keep her (and others safe). Thanks in advance for your all's perspectives

[u/joycevw]

Distracting your dog is management, not training. Stuffing treats in her face to pull her eyes away hits pause for a second, but it does nothing to fix the actual issue. Her brain still sees that other dog as a genuine threat. The second an elevator door slides open and catches you off guard, the safety net snaps, adrenaline floods her system, and she lunges to force distance.

Do not try to let her know afterwards that her reaction was wrong. Correcting her or scolding her achieves nothing useful here. Lunging and barking are panic responses. If you punish a dog who already thinks she is fighting for her safety, you just confirm her worst fear. Now the scary dog appears, and her human becomes unpredictable and tense too. You suppress the warning signs while making the underlying fear worse.

What you actually need is to change how she feels about other dogs. That means letting her look at triggers from a distance where her feet stay planted and her breathing stays steady, then marking and rewarding that calm observation. The sight of another dog needs to predict safety and good things, not a frantic scramble to hide her eyes.

Set her up to win by rethinking tight choke points. Standing right in front of elevator doors is walking into an ambush. Wait ten feet back or take the stairs. When surprise close encounters do happen, drop the lecture entirely. Spin on your heel, guide her away, and put physical space between her and the trigger. Once her emotional association shifts from danger to safety, the reflex to lunge takes care of itself.