It's good to show respect to authority.
Jack's parent's have asked him to finish his homework before he can have any fun.
Jack wants to play video games with his friends.
Jack finishes his homework right away and then begins playing his video game.
Jack tells his parents that he is finished, having done no homework at all, and proceeds to load up his video game.
His parents reward him for his obedience by allowing him to stay up a little past his bedtime.
Jack's parent's discover he is lying and punish him by grounding him and taking away his electronic privilages.