At the risk of being non-PC my favourites are from when I taught Japanese and Chinese students in Australia. In addition to the usual student foolery there's the added element of mis-translation.
First one. Japanese student, practice engine failures/glide approaches. He conducted several perfectly executed examples during which all checks and radio calls were made and the aircraft was always going to make the field. To be honest I was beginning to hate the guy he was so good. "Obviously no problems there" I said "One more and we'll call it a day but this time imagine you have passengers on board." I retarded the throttle saying "Simulated engine failure". He paused briefly before miming tying on a headband and saying "Passengers, prepare to die. Banzai!!"
Chinese student we'd nicknamed Dr Death. Out on a cross-country exercise starting at sea level (Coolangatta, east coast of Australia), almost due west over the Dividing Range for a touch and go at a bush strip (elevation 600' or so) before heading off to a (then) CTAF and home. Inbound to the strip the guy was a mess. Got lost several times in the space of 45 minutes, R/T a nightmare, he was overloaded from the moment he started the engine. After the slam and go at the strip he immediately initiated a turn on to his outbound heading. There was barely enough height to prevent the wingtip striking the ground so I levelled the wings and asked "What about the 500 foot rule?". His reply, "Altimeter says 630 feet".
