The narrator accidentally bumps into a stranger on the street and they politely apologize to each other. Later at home, the narrator snaps at their son for getting in the way in the kitchen. That night, God's voice reminds the narrator that they showed courtesy to a stranger but were harsh with their loved ones. The next day, the narrator finds flowers their son picked by the door and realizes their mistake. They apologize to their son, who forgives them and says he loves them anyway. The moral is to treat family with the same courtesy as strangers.