Unless you are actively fearing for your health and safety you can not be passive in those situations. You need to at least try and talk him out of that sort of bullshit. He is at the point of being extremely destructive to himself and others to the point where if it's not stopped now it becomes a health and safety concern for everyone within a few bacon degrees.
The only people who might be able to reach him are those he lets in, in your case literally.