I was also going to say the SAW guy, but for different reasons:

John only targets people who he knows, who morally disgust him, or people who have personally made his own life considerably worse, or slighted him in some way.

...

If the scenario is... I have to survive 24 hours without being targetted by one of his kidnapping and torture plots...

Well, I do not have any deep, hidden secrets, I do not deny any part of my past to anyone willing to ask about it, I do not pretend to be something I am not. I have of course made mistakes, but they've never ruined any one's life, and I freely admit and take responsibility for them.

Frankly, given my considerably traumatic life thus far, and my current status of... being crippled, doing not much beyond PT and lemmyposting all day, untill I finish recovery... and given that I have actually made friends out of actual, diagnosed sociopaths before...

I really do not think I would be the kind of person John would have any problem with.

...

If the scenario was just poof, both of us appear in a room and are both there for 24 hrs... we just... talk? Trauma bond over our fucked up lives?

John has, more than once, recruited into his schemes people who... pass his tests, whom he does not find morally abhorent.

I don't have to agree with him on every single issue, I mostly just have to not be a hypocrite, and not intentionally try to offend or harm him.

...

Oh right, given that I have actually been held captive by a fentanyl addled mad man, for a week, and managed to talk my way into letting me leave... and then stumble over to a nearby firestation and tell them to call the police...

If I have actually survived a week of a very similar situation, I think I can survive just 24 hrs with a fictional character, who has a much, much more consistent, albeit still fucked up worldview.