On a hot summer day, Zhu Bajie and Sun Wukong went to find their master.

Zhu Bajie ate the watermelon in big gulps, throwing it away while eating, leaving it everywhere on the ground. Sun Wukong saw it and cast a spell to put the watermelon rind in front of him. With a plop, Zhu Bajie slipped and fell. Zhu Bajie admitted to Sun Wukong that he had made a mistake of throwing watermelon rinds, and put the watermelon rinds on the ground into the trash can.