My wife has this, she's incapable of breaking rules.
Let's say her employer to do things a and then b, but then a coworker tells her it's better (in practice) to do it the other way around...she'll get an error and stop functioning at all.
I was told all these scary things about life and always had this: "i'll see it when i get there" attitude. So now i have to spend half my energy dragging my wife along otherwise she'll forget to live life.