Years ago there was a model aircraft flying club at Nutts Corner, near Adlergrove. We had a comprehensive radio set in the Puma which could push out absolute mayhem on 27 megs. With this we used to give unusual attitude practice.
We would observe somebody flying his life savings around and we would hit the transmit button. The victims pride and joy would then lock up and then plunge earthwards. When we thought that the owner really had his knees crossed at about a hundred feet to go we would give it back to him.