When preparing students for their skill test towards the end of their ppl course, I always included a little demonstration of what might happen if they let their non flying friends have a go. After slow flight and stalling revision, whilst still well above 3000 agl, I’d take control and start a turn. I’d add a bit too much bank, just over 30 degrees, but fail to apply enough back pressure. Inevitably most students were slow to recognise the ensuing spiral dive. Astoundingly some misdiagnosed it as a spin (which is not a normal part of the current syllabus).
Either way food for thought and plenty of discussion items for the post flight debrief and coffee.