What to do when an off-leash dog runs at your dog

Why off-leash dogs are the hardest part of walking a reactive dog

If loose dogs are the thing you dread on walks, you are not imagining it. A peer-reviewed study of 37 owners of reactive dogs in the UK found that "Other people's off-lead dogs were highlighted as being especially problematic, which sometimes brought owners into conflict with members of the public." The study's title quotes the line those owners kept hearing: "It's okay, he's friendly."

Working dog teams report the same thing. In a 2011 survey of 744 guide dog users by The Seeing Eye, 76% of respondents said they had been attacked at least once by a loose dog, and 80% of attacks happened "on a public-right-of-way such as a sidewalk or roadway". The report itself warns that self-selection may have pushed those numbers up, but the pattern is clear.

Before it happens: route, time and gear

Most of the work is done before you leave the house. The owners in that study coped by "avoiding places frequented by others or walking at antisocial times". That is not giving up; it is good management.

• Pick routes with exits. Streets you can cross, parked cars you can step between, a fenced yard or a shop doorway. NYC Animal Care Centers, a municipal shelter, advises creating as much space from a trigger as possible, which "may mean crossing the street or stepping in between parked cars".
• Skip the places loose dogs gather. Off-leash areas, the edge of a dog park, and trails where you already know dogs run free.
• Use equipment that helps you hold on. The same handout names a front clip harness or a head halter as the best equipment for a reactive dog, because they make lunging easier to control.
• Practice exit cues. Trainer Pat Miller suggests a "Walk Away" cue, practiced when nothing is happening, so your dog already knows how to leave with you, and a "Get behind me!" cue so you can stand between the dogs.

Gear speaks to people, not dogs. A leash printed DO NOT PET or a "give me space" patch can make an owner call their dog back sooner, but a loose dog cannot read it. See reactive dog vests and gear for what each kind of gear does well.

When a loose dog is coming at you: what to do

These steps come from two credentialed trainers writing for owners (sources below). Use the ones that fit the dog in front of you, roughly in this order:

1. Stay as calm as you can. Pat Miller warns that panic stresses your own dog and makes a bad encounter more likely.
2. Leave, if there is time. Turn and walk a different way, using a treat to keep your dog's attention on you. Cathy Madson puts it simply: "Avoiding contact with the off-leash dog is the best option!"
3. Get something between you. Step into a fenced yard or business and close the gate, or put a parked car between the dogs.
4. Block and speak up. Step forward, put your hand out in a stop motion, and keep your body between the loose dog and yours. Use "a loud, firm voice" to say "Go home!" or to ask the dog to sit.
5. Toss treats away from you if the dog seems pushy rather than aggressive. It can buy you seconds to leave.
6. Think twice before picking up a small dog. Miller says it leaves your hands full and can put you at greater risk, so treat it as a last resort.

Your own dog may be startled by your shouting, so practice it at home first, paired with treats. We do not recommend sprays, horns or other deterrent products: we have not researched them.

Talking to the other owner ("He's friendly")

When the owner is in sight, your job is to get their dog called back, not to win the argument. Short and loud works best:

• "Please call your dog. Mine is not friendly with dogs."
• "Please leash your dog, mine is recovering."
• "Stop! Call him back!"

You do not need to explain or apologize, and you do not owe anyone a greeting. Even when both dogs seem friendly, Madson advises against letting them meet, partly because you cannot know whether the other dog is vaccinated or healthy. If the owner argues, keep walking away. If there was an injury, getting their name and contact details matters more than anything said in the heat of the moment. More scripts for people, not dogs, are in how to stop people petting your dog.

If the dogs make contact

Protect yourself first. Madson notes that the way people pull dogs apart "can cause more injury to the dogs or cause redirected bites to people", and that kicking at or hitting a dog "can often backfire and usually doesn't work". Shout for help: Miller's advice assumes you will want "another human nearby to help you untangle dogs."

As soon as the dogs are apart, move away, check your dog quickly, and check yourself. If you were bitten, get medical care for yourself too.

After an attack: vet, report, records

Whole Dog Journal's advice is direct: "get immediate veterinary care for any wounds your dog has suffered and report the incident to Animal Control." A checklist for the hour after:

1. Call your vet. Even if you cannot see a wound, ask whether your dog should be seen.
2. Identify the dog and owner. Name, address, contact details, and a photo of the dog if you can take one safely.
3. Get witnesses. Names and contact details of anyone who saw it.
4. Write it down. Where, when, what happened, and whether the dog was loose or on a leash.
5. Report it to your city or county animal control (or the police, if you were hurt or felt threatened).
6. Keep every bill and photo. If you later ask the owner or their insurer to pay, these are your evidence.

Be ready for reporting to feel unsatisfying. In The Seeing Eye survey, 64% of those attacked did not report their most recent incident, and of those who did, "almost two thirds (60%) were dissatisfied with the way the incident was handled." Report anyway: a written record helps if the same dog does it again.

After an attack, some dogs become more fearful of other dogs. If yours does, see reactive vs aggressive dog: where to get help.

Leash laws: local, not federal

There is no single national leash law. The Seeing Eye's report puts it this way: "Most local and state laws prohibit dogs from roaming about unleashed and unsupervised." The details, including any fine for a dog off leash, are usually set by your city or county, and they differ from place to place. Some parks and trails allow dogs off leash in marked areas, where the loose dog may be within the rules.

To find your rule, search your city or county code for "leash" or "at large", or ask your local animal control. We do not list fines, because they vary and change.

Who pays if an off-leash dog attacks your dog?

That depends on your state. The Insurance Information Institute describes three kinds of dog owner liability rules:

• Dog-bite statute: the owner is "automatically liable for any injury or property damage the dog causes without provocation".
• One-bite rule: "the victim must prove the owner knew the dog was dangerous."
• Negligence: the owner is liable if the injury happened because they were "unreasonably careless" in controlling the dog.

The III adds that "In 29 states, dog owners are liable for injuries their pets cause, with some exceptions such as if the dog was provoked." These rules are mostly discussed for injuries to people. How your state treats an injury to your dog, and what you can recover, is a question for a local attorney or the other owner's homeowners or renters insurer. Your records from the checklist above are what make any claim possible.

If your dog is a service dog

Service dog handlers have more. The Seeing Eye says "most states now have some type of legislation imposing penalties for harming and interfering with guide dog teams", and some states order the other owner to pay vet bills and retraining or replacement costs. Those laws cover service and guide dogs, not pet dogs. If you are a handler, read service dog attacked by another dog for state examples and what to do next.

Common questions

Sources

1. Hart and King, "It's Okay He's Friendly": walking a reactive dog, Anthrozoös 2023 (abstract)
2. The Seeing Eye, Guide Dog Attack and Interference Survey, 2011
3. The Seeing Eye, Interference and Dog Attacks
4. Insurance Information Institute, Spotlight on dog bite liability
5. NYC Animal Care Centers, On Leash Reactivity and Barrier Frustration (handout)
6. Whole Dog Journal, Pat Miller, What To Do If a Loose Dog Is Coming At You and Your Dog (2023)
7. Preventive Vet, Cathy Madson, What to Do When Approached by an Off-Leash Dog (updated 2025)

General information, not legal advice. Policies and laws change; follow the sources. Last checked October 27, 2026.