.......and start a small fire in the cabin so the student instructor can practise dealing with those as well??
Spoke to a very experienced instructor who teaches SLMG and PPL yesterday. The basic difference is that the half-airbrake approach in an SLMG is a totally different technique to the glide approach or FLWOP in a Spamcan. My Flying Order Book specifically prohibits using the ignition or mixture controls to simulate an engine failure in a single-engined aircraft. I would immediately pass the details of any pilot who disobeyed these orders to the CAA's enforcement branch and urge that the miscreant be prosecuted with the maximum severity. After we'd finished kicking the living !!!!! out of him!!