injunctive norm. If someone did come back late after David had been in work that morning, there would be obvious hostility between the three members directed toward the late person. Anything that was acceptable when David was out, was not when he was in the office. For example, when David was out, no one really spoke, everyone would tend to their own work. However, when David came in you would find Paul talking to Mary (usually not even about the task on hand) just to look as if he were interested.
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