It is wrong to antagonize your sibling.
Sam and her sister are watching a movie when her sister falls asleep snoring.
Sam wants to watch the movie in peace.
Sam gently wakes up her sister and tells her to go to bed.
Sam throws cold water on her sister to wake her up.
Sam's sister hugs her and bids goodnight, leaving Sam to watch TV in peace.
Sam gets grounded and her sister won't speak to her for weeks.