Just sharing some personal experience about OC/Bear spray so folks don’t have an unrealistic expectation of what it will provide.
I’ve been sprayed with OC spray twice (in training) but never with bear spray which deploys at a greater volume and velocity.
The first time, was with a conical mist pattern where my face was completely saturated. Conical mist pattern is probably more similar to bear spray than a stream pattern is, but I’m not familiar with all bear spray manufacturers so I could be wrong.
For humans, OC spray is a form of pain compliance. Some people are more sensitive to it than others. I’m definitely on the more sensitive side of the spectrum. After I was sprayed the first time, I had to conduct a felony arrest (again, training) and handcuff a role player. In my experience, even though I was in pain, I was able to draw my training weapon, prone out the role player, reholster, and handcuff them.
After about a minute, my eyes began to involuntarily close and I had to physically peel one eye open to continue on. This lasted for another 45 minutes to an hour.
For another 2ish hours after that, I felt pain but could otherwise function okay.
I’ve had to spray someone in self defense. That person was unaffected by OC spray.
All of my coworkers have been sprayed with OC. A handful of them are unaffected by OC spray.
All this to say, just because the person has been sprayed does not mean that they will be incapacitated immediately, if at all.
My bear spray specifically says “not for use on humans.” Any OC spray has a minimum and maximum safe/effective distance on humans. Too far away and the spray won’t reach the face. Too close and there’s the risk of actual eye injury from what is known as the “hydraulic needle effect.” If you are going to deploy something that states it should not be used on humans, you’d better be sure that is your best/only resort as you may find yourself in civil court.
Before anyone responds with “better to be judged by 12 than carried by six,” forgive me, but that’s a loser’s mindset. It’s not an either/or scenario and one can win both in a fight and in court with some training and education. If you’re concerned enough to consider carrying a weapon for defense, then you need to spend the time to get trained and educated on how to best defend yourself in a way that is both effective and legally defensible.
A little maturity and situational awareness can go a long way. Many assaults are avoidable. Study conflict avoidance and have the maturity to shelve your ego and walk away.
For the assaults that are unavoidable, look for the “shark bump.” I’ve spent dozens (> 100?) hours studying officer involved shootings and assaults, many have video. We do this in an attempt to see if our training is environmentally correct, legally defensible, and uses the least amount of force in an attempt to limit injury and liability.
In most if not every case, the assailant will “shark bump” the victim before the attack. This is usually posturing, verbally threatening, and exhibiting pre-fight indicators.
The take away from this is that there is almost always a warning, and it’s in your best interest to recognize it for what it is, create distance, and prepare yourself for an attack. It amazes me how many people will allow for people to close in on them in dangerous situations out of some need to not be impolite.
As an example, my kid had to go to an ER and the hospital is in a bad part of town. Once we were discharged, it was late at night and the parking lot was not well lit. We had a shady looking person try to approach us in the parking lot with “hey do you know where X is?” My response was “No thank you! No thank you! No thank you!” as I put distance between us and him. He called me an “f’n a-hole,” which is not incorrect, but I’m not a tour guide and I’m not letting anyone approach my family or me in those conditions.
If someone is giving you the heebie jeebies, trust your gut instinct and do not let them get close to you. Especially in a wilderness setting, you have a right to some personal space and to ask for people to not invade it. That may be five or twenty feet depending on the circumstances. If you’ve asked for someone to stay away and they insist on ignoring the request, that’s your opportunity to assume a defensive posture.
The conditions I’ve mentioned above are not likely to happen on a hike and it’s likely much safer there than the front country. I think once you’ve put some distance between you and the TH, your larger concerns should be environmental and terrain more than people or animals, but we’ve had a few fatalities here in the PNW, with two confirmed by mountain lions in 2018.
HYOH and carry whatever makes sense to you.