Animal Farm
What do the hens do to protest their eggs being sold?
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The hens rebel by laying their eggs in the rafters so that the eggs smash on the floor. Napoleon stops the hens’ rations and makes feeding a hen punishable by death. Nine hens die, supposedly of coccidiosis, during the five-day strike, after which the hens surrender.
http://www.gradesaver.com/animal-farm/study-guide/summary-chapter-vii