I was sent this cartoon.
I sometimes post my theories about mindreading here. Briefly, I believe that the vast majority of humans suffer from a delusion that causes them to engage in mindreading. It is so widespread that most mindreaders don't even realize that they are doing it. If you point it out to them, they will insist that they are applying ordinary cognitive processes.
There are plenty of non-mindreaders, but for the most part they are oblivious to the mindreading that is taking place.
I don't do mindreading. I sometimes point out fallacious mindreading by others.