Yes, I was trying to visualize how I could control the horse and the dog, and dispense pepper spray all at the same time. I also wasn’t sure it would work, even if I could manage it. That’s why I asked if anyone had experience with it. Only one responder had actually tried pepper spray, and it didn’t seem to work too well.
I like the suggestion to use a Hot Shot cattle prod. The only problem with that is that it would be cumbersome to carry while riding. I wouldn’t mind dismounting to get close enough to poke the dog with it.
As for restraining my dog, I carry a leash to use if needed. In the incident I posted about, having my dog on a leash would have made no difference. My dog was trotting alongside my horse right by my stirrup when she was attacked, and that would have happened even if she had been leashed. In fact, a leash might have made it more difficult for her to defend herself.
I live in a rural area. The terrain is farm land and national forest, and the roads are unpaved. There are no leash laws and no animal control officer. Even though the roads and trails are public, they are very lightly used. In fact, yesterday I rode for 2 hours and didn’t encounter a single vehicle. Hunters often run their dogs in the national forest since there is no requirement to keep dogs leashed as in more populated areas.
Yes, I could leave my dog at home when I ride, but that’s not really a solution to the problem. The aggressive dog is becoming bolder, and the next target could well be my horse if I’m riding or me if I’m walking. My dog, my horse, and I have every right to walk down a public road and expect that we will not be attacked. We are not the problem; the aggressive dog is the problem. I just need to figure out the best way to address it.