If the light in your overhead projector suddenly dies in the middle of your presentation, what do you do?
D001296:Audiovisual Aids; D004509:Education, Nursing, Continuing / Q000458:organization & administration*; D004868:Equipment Failure; D006801:Humans; D009740:Nursing Staff / Q000193:education*; D013192:Staff Development / Q000458:organization & administration