I know how to shut them off but it wasn't something taught officially. Like others, pilots have taught me bits here & there that aren't part of the syllabus but 'nice to know' eg how to get out of the f/d from the inside, best thing I think CC should know about the flight deck?
They taught me
1) How to make a radio call on international distress frequency
2) How to set the autopilot to keep the a/c level, stop a climb or descent, etc
Sure it won't let me fly the plane (even though I can fly small aircraft, I'm more realistic than that!) but it's enough to get advice for sick pilots and possibly have someone talk you through programming the auto-land!!!