At one nativity play with appropriate accompanying Christmas carols, the rather stage-struck drama teacher had made the stage into several levels by the use of large wooden boxes.
The cast had to display themselves on these during the performance for visual effect.
The Three Kings were clambering up to the highest level for their appearance when one fell over backwards and disappeared from view behind the scenery. I had to stuff a handkerchief into my mouth when the sharp-witted choir of 12 year olds sang, "We TWO kings of Orient are..." the little monkeys!