What seems to be happening is a different pattern of behavior. The park bench wino's who'd come spare changing. They'd give attitude while walking off when you'd tell him to get lost. If they had their wine already they would generally be friendly and want to tell tales of their life & travels. Then there were the ones who were wandering around talking to themselves. See the experiences in the last month or so. Now it is hardcore addicts who will do some crazy stuff to get their next dose along with the "typical" alcohol ravaged vagrant. I'll tell you for sure all of them except the babbling idiots carry some kind of blade. They get messed with a lot on the streets and other vagrants are always trying to steal their stuff. Now especially since the murder in Skinner's Butte even the guys who weren't carrying before are now.
I got in the habit of carrying a 12" Bowie knife when in the woods due to all the wild hogs where I lived fished etc in Florida. I still do. But problem is with using deadly force/weapon is that all it takes is someone to only witness half of the situation. Guy tries to take your tackle bag, you push him back. He goes beserk picks up a big rock & tries to bash you in the head. You block the blow, he drops the rock & you defending yourself from a potentially lethal attack pull out the knife and stab the offender. Just about then some (example) lady walking her dogs sees you step at & stab the nut while he is taking a step back yelling NO. Police arrive lady says she saw you stab the man for no reason. He was backing away. There is no visible weapon other than yours. That means you have a high probability of doing penitentiary time for a violent crime. If you get lucky the guy survives and tells the cops that he tried to bash your brains out. More likely he is going to say you attacked him cause he doesn't want to go to jail. So over the years I've had a few occassions where I was in imminent danger did have a knife up my sleeve ready to do what I had to do- rest areas, parks- but was fortunate enough that the "bad guys" seeing my posture and body language decided that I was better left off alone with out me having to display and use my weapon. So thinking about it I may just get some spray now. I wouldn't have to worry about getting hurt/killed trying to take on more than one at a time. I wouldn't have to worry about weapons charges. But if you see me out of town I'll still have the pig sticker on & in plain view. I like to think of it as Idiot Repellent.
Also oregon statute 166.260 2b allows the carrying of concealed
firearms : Licensed hunters or fishermen while engaged in hunting or fishing, or while going to or returning from a hunting or fishing expedition.
https://www.oregonlaws.org/ors/166.260.html