It's good to try hard at school.
Billy has a big test tomorrow, but an awesome new video game was released today that he's been waiting months to play.
Billy wants to play the new video game.
Billy studies for the test and waits until the next day to start playing the new game.
Billy blows off studying and plays the new video game all night.
Billy passes the test and is able to play the new game all night the next night.
Billy fails his test and his parents forbid him to play the game again.