[GekkePrutser]

At our club we had a mandatory passenger briefing but it's simply not possible to convey enough information to get them down safely. So it was basically a "don't touch anything" type of thing.

This is with the exception of auto return to base autopilots and parachute systems like Cirrus's. Those are safe to be operated by passengers. But we didn't have either of those, most of the planes didn't even have an autopilot.

The plane in the article was a Cessna 208 though and probably had one.