One cold and wet evening a small cargo ship was lurching slowly across the North Atlantic . The skipper was brewing some coffee in the wheelhouse and, outside, the lookout huddled miserably trying to avoid the rain. In the radio room, the ship's radio operator was listening to some music from a French station. He sat nodding sleepily by the speaker and his head sank lower and lower until it was resting on the bench in front of him and he fell asleep.
In his dream, he imagined he was living in Paris at the time of the Revolution and was on his way to the guillotine jeered by a large and violent crowd. Struggling desperately for his life, he was dragged up the steps to the platform and his neck laid across the fatal plank. Stricken with absolute terror he awaited the falling blade. At that very moment, the skipper popped his head around the radio room door. Seeing the operator asleep, he leaned across and tapped him smartly on the back of his neck with a teaspoon. ‘Wake up, Sparks, coffee's ready,’ he called. To his horror, the radio operator dropped dead at his post!
The mystery: What evidence does the story contain which proves that it cannot have happened?
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Solution (scrambled): the not dream could operator's known We have radio
