I regret meeting those crazy ones. Live and learn. One was a meth head. I could tell immediately upon arrival. But I ignored it mainly because I was horny.
The other one suffered from some type of mental illness. Seemed normal online. Witty, chill, outgoing, then dude shows up in my yard un invited. Screaming bloody murder about being "triggered" I made a post about it. He still has an account here. He's a self proclaimed genius in person. Pretty unacceptable behavior. I don't think he's dangerous per si.
Just an aggressive mentally unhappy lonly person with a superiority complex.
That's the thing though, mental illness can manifest itself in a variety of ways.