Apparently, fire extinguishers, particularly CO2 and/or Foam, sprayed directly in the mouth, nose, and eyes, cuts off breathing and visuals temporarily . . .
excerpt:
” . . . .Grab a fire extinguisher
. . . .long recommended fire extinguishers as the safest and most humane tools for interrupting a dog attack, based initially on advice from Warren Cox, an animal shelter director from 1952 to 2012, later verified by tallying the data from thousands of dog attack accounts collected in our own files since 1982.
Why a fire extinguisher?
Using a fire extinguisher does not require closely approaching the dog.
A fire extinguisher does not have to be aimed very accurately to have a deterrent effect.
A fire extinguisher does not quickly run out of ammunition.
A fire extinguisher does not produce an erratic ricochet.
And a fire extinguisher is normally non-lethal, even if discharged directly into a lunging dog’s mouth and throat.
If the fire extinguisher is exhausted while the dog attack continues, the empty cylinder can be used as a shield, a bite stick, or even a club, as appropriate.
Besides the deterrent effect of the fire extinguisher’s contents, which tend to make animals quickly short of breath without lastingly harming them, most animals, including most dogs, retreat from the snake-like hiss of a discharging fire extinguisher.
Carrying a fire extinguisher while walking, jogging, playing, or working outdoors is awkward, but there should be a fire extinguisher in every kitchen, near every fireplace, in every car, near the driver in any bus, truck, or taxi, and prominently and visibly located in every public building or place of business.
Among the other popular non-lethal devices used to stop dog attacks, . . . “ (see article)
Thx