I can just say that the brain is a weird thing and as people with schizophrenia we get weird ideas and as people with schizophrenia we sometimes act on them. There are as many weird behavior’s and actions as there are schizophrenics. I’ve heard of a lot weirder behavior than your son is doing. In slang terms, the “wires in our brains are crossed” and we can’t help but act strange sometimes.
I have paranoid schizophrenia. I have worked for most of the last thirty years. I drive my own car. I need only four more classes for my degree. I’ve lived independently since 1995. At the present time I am renting a room in a middle-aged couples house.
About an hour ago I heard a noise. I thought the husband was dragging something across the inside of his bedroom wall repeatedly to intimidate and control me. I came out of my room semi-angrily to go to the bathroom. I discovered the noise I heard was coming from outside the bathroom window; it was a tarp being blown across the outside wall by the wind!
The very definition of our disease is delusional thinking. So does this help explain your sons behavior?