It is disrespectful to swear at your parents.
Jim comes home past his curfew and his waiting parents tell him he's grounded for a month.
Jim wants to show his displeasure about being grounded.
Jim explain to his parents that he was late because their was a wreck on the highway.
Jim curses out both his parents for being so strict and for grounding him.
Jim has his grounding lifted when his parents check the news and see the accident report.
Jim gets grounded for 6 months instead of 1 month.