Carrying a Cane ?

Per Frank Krygowski:
I think "Halt" pepper
spray works best, whether walking, jogging or biking. Especially if the
carrier has an air of confidence plus a bit of aggression. They do
sense one's attitude.

I used to use Mace - the kind you buy in the cop stores.

What I found was that there was not need to get any of the stuff on the
animal. Instead, I would just lay down a line between me and the dog.
They would lose interest every time.
--
Pete Cresswell

Per Frank Krygowski:
Regarding your last story, one friend of mine used a very similar tactic
with a next door neighbor and his outdoor barking dog. This was back in
the 1970s. My friend was an audiophile with quite a powerful stereo
system. After repeated requests to keep the dog quiet, my friend ran a
high quality microphone to the property line, hooked it up to his
high-watt amplifier (and turned up to 11, no doubt), pointed the
speakers at the neighbor's house, and sat back. The dog was inside by
the next day.

Somewhere I read an account by somebody who rigged up a
speaker/parabolic reflector, aimed it a dog, and played some sort of
sound that hurt the dog's ears.

He claimed success - similar to the slingshot/ball bearing approach -
but at a longer range and less traceable.
--
Pete Cresswell