Air horns (available at boating supply stores) can be effective at warding off attacking dogs, but your own dog has to be desensitized to the cacophony, or you are likely to lose him as well!
You can also risk damage to eardrums, both canine and human, and you do take a chance of frightening your own dog beyond repair.
Will an air horn break up a dog fight?
Air horns are loud. And effective. The blast of an air horn usually startles the dogs for long enough to grab their leashes and pull them apart. It’s worked almost every time I’ve ever used it, and it’s a common tool seen at animal shelters.
Do air horns scare dogs?
Nobody wants to hear that sound again. That’s what makes air horns work so well for people with dog barking or dog trespassing or security issues – it causes no harm to anyone when used properly; it’s just highly unpleasant which is what makes it so effective as a deterrent.
Will pepper spray stop a dog fight?
If the other dog gets kicked, it won’t stop the attack but just intensify it. Using pepper spray or mace may seem like a good idea when breaking up a dog fight. However, these should never be used. Both of these work by inflaming the mucous membrane.
Should you break up a dog fight?
In an article for Pet MD, Jennifer Coates, DVM recommends using distraction to break up a dog fight. Try distracting the dogs by throwing water over them. A loud noise such as an air horn or two metal objects being banged together can also be effective.