Let me guess. You game.

Everything in life is training for the next day. Spending so much time training yourself to expect things to follow the common logic of games leads to that expectation ‘leaking’ out of its context. If you spent all day watching porn, eventually, you’d expect life to follow porn rules. If you spent all day on 4chan, you’d expect people to act like meme-brained incels. Even something like doing sudoku teaches you to see numbers in boxes and look for the pattern to fill in other boxes. Where someone who spent their life immersed in religion might see spiritual possession, you see NPC behaviours. This is conceptual framing, a.k.a. ideology.

As for that particular guy, based just on the info given here, I’m guessing drugs. Work sucks. Some people do drugs about it.