In order to do more work for the laborers, Zhou Pipi got up in the middle of the night to learn to crow and let the laborers work (it is clearly stipulated in the deed of sale that when the rooster crows, they have to get up to work), because there were no timekeeping tools such as clocks and watches before, and the laborers got up from the time when the rooster crowed until sunset to rework, and Zhou Pipi crowed in the middle of the night, so they were asked to get up early to work for him. Long-term workers hate this kind of "weekly skinning" and finally can't stand it. Or Bao Xiao, a small laborer, gave a lesson to "Zhou skinned".