This is interesting because Büsching also says that nearly of of Fritz' personal servants were uneducated to illiterate near the end, because he'd gotten paranoid about being spied at. Clearly, if so, Schöning was an exception.

Oh, Fritz. Maybe if he trusted you not to spy on him, he liked the company? He was getting kind of lonely at the end, even with Lucchesini.

I say again: oh, Fritz.