We had one Serv. Mtg. part where "Doctor Theocratic" was at his desk asking for the next patient.
The first patient would describe some problem of anxiety and weight-gaining and Doctor Theocratic would recommend auxiliary pioneering with lots of door-to-door for exercise.
The next patient would describe fatigue from overworking and Doctor Theocratic would recommend simplifying his life by cutting out some luxuries, then using that time to regularly attend meetings and study with his family.
There were more patients, but you get the idea.
By the way, the craziest demonstrations would be presentations where the householder gives a mindless "Really?" to whatever the JW says and accepts the literature and agrees to the return visit- In other words, the typical demonstration is crazy.