Leash reactivity to dogs: threshold protocol and management

Leash reactivity to dogs means the trigger is another dog while your dog is on lead: lunge, bark, scream, spin, or freeze. The working rule is the same family as on-leash threshold: train at a distance the dog can still eat. This page stays dog-to-dog. It is not a people-or-bikes protocol and it is not a clone of the general threshold article.

I board dogs for a month and longer as a trainer from Russia. I am not a veterinarian. No fake client reviews. AVSAB’s public training position supports reward-based behavior work. Flooding is not the method here.

What does dog-to-dog on-leash reactivity look like?

• Lunging to the end of the lead when a dog appears
• Barking or screaming that starts before the other dog is close
• Spinning, redirected mouthing of the lead or handler
• Freezing then exploding when the pass is forced

Window rehearsal at home can feed the same arousal. See window barking if the dog already practices at the glass. Equipment that lets you feed and turn matters; see harness and lead.

If the dog cannot eat, you are too close.

How do you run a dog-to-dog threshold pass?

Management first. Training second. Flooding never.

1. Pick the route. Wider pavement, off-peak timing, parked cars as visual breaks. Avoid the narrow dog alley at 08:30 while you are still teaching.
2. Find feedable distance. Other dog appears. Can your dog take food? If not, increase distance or leave.
3. Mark a clean picture. Look at the other dog, then back to you; or a turn away (engage-disengage seed). Feed at the mouth, not thrown into the fight.
4. End early. Curve away while the dog is still below threshold. Winning reps beat heroic close passes.
5. Reset at home. Rest. Do not stack five hard passes “because we are out anyway.”

Engage-disengage starts as: notice dog → mark → treat for turning back or moving with you. Keep it short. Do not demand a formal heel through a pack of off-lead dogs on day one.

How is this different from the general threshold page?

On-leash threshold teaches the distance rule across triggers. This page applies it to other dogs: parallel walking geometry, narrow UK pavements versus wide US sidewalks, and the social pressure to “let them say hi.” Saying hi on tight leads is often how fights start. Cross the street. That is training hygiene, not rudeness.

People, bikes, and vans can share mechanics but need their own criteria and routes. Do not mash every trigger into one drill and call it done.

How do US sidewalks and UK pavements differ?

Width and dog culture. A wide US suburban sidewalk may give you lateral distance. A UK terrace pavement may force an earlier curve into the road (safely) or a wait behind a car. Flats with shared gardens may need timed exits. The criterion does not change: feedable distance, early leave, no forced greetings.

How do you handle narrow paths when distance is scarce?

Arrive early or late. Wait behind a car. Step into a driveway if safe. Cross before the other dog closes. Carry high-value food so the mark has something to buy. If the path is a forced head-on every day, change the walking time before you change the dog. Architecture and schedule are part of threshold work.

On a UK terrace pavement, plan the curve before you need it. On a wide US sidewalk, use the lateral space instead of marching straight at every dog.

What equipment choices help without becoming the whole plan?

A well-fitted harness and a lead length you can actually manage help you feed and turn. Tools do not replace distance. Aversive collars that suppress the bark can also teach that other dogs predict pain. This publication stays reward-based and management-first. See harness and lead for fit notes; this page stays the dog-to-dog protocol.

When is this not a DIY protocol?

Bite contact, injury to dog or human, a dog who cannot take food at any practical outdoor distance, or redirected biting of the handler. Use management (car exits, off-peak routes, visual barriers) and see a qualified trainer or veterinary behavior professional in your country. See not veterinary advice.

What does an engage-disengage seed look like on a real pavement?

Other dog appears at a feedable distance. Your dog glances. You mark the glance or the turn back to you. You feed. You curve away or continue if the dog stays soft. Two to five clean reps beat one heroic close pass. If barking starts, you already missed the exit; increase distance next time.

Parallel walking (same direction, lateral space) is often easier than head-on passes. Use it. Teach your household that “they just want to say hi” is not a reason to tighten both leads into a face-to-face slot machine.

What are the usual failure modes?

• You flooded the park entrance. Panic rehearsed. Distance is the criterion.
• You yelled sit at zero metres. Obedience at the wrong range is not threshold work.
• You allowed on-lead greetings “to be social.” Many reactive dogs learn that dogs predict conflict.
• You used a tool that hurts and called it focus. Suppression is not the same as a feedable pass.
• You ignored window rehearsal. Glass practice raises the baseline. Manage the view.
• You stacked hard passes until the dog was cooked. Quit while winning. Rest is part of the protocol.