I tend to agree with dougwalkabout. I like the test as a diagnostic or thought-provoking exercise. If you can nudge people a little into thinking about simple things power outages at first, then you may be able to get them to ramp it up over time. Use the test as a tool of encouragement and reinforcement. Throw some off-beat ones in there also just to mix it up; something about marshmallows or bathing cats.