After a big test, have a lot of fun. When there is no test, have some fun anyway. "When they had no tests, it was no problem to hand in your work a little early and then relax. When it was test time, it was even better, because the teacher didn't teach new material, and they didn't have to spend extra time on their homework.
他的理論是「小考小玩、大考大玩、不考也玩」，平時沒有考試時，早交作業就沒事；一遇到考試更好，因為老師沒有教新的進度，就不必再花時間寫作業。