Lol, I too have a sibling and though we don't fight now, there was a time we would fight a lot and mom's entry was a total nightmare because as soon as she would see us fighting, we knew death was lingering around lol but those were really the days.
Your mother have a very good point but it's almost impossible to end siblings fights and quarreling. What I know very is that it's an age thing, there's a certain age siblings get to, they will outgrow that squabbles and fighting.The very first day I fought with my elder brother, our mother never cared about who was at fault and gave both of us the beating of our lives. After that, she made us to understand that brother's should never fight each other. She asked us one question saying, "if you fight your blood brother, what would you do another who isn't your brother?" That question never left my head till today and that was the last day I had any fight with my elder brother.
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Lol, I too have a sibling and though we don't fight now, there was a time we would fight a lot and mom's entry was a total nightmare because as soon as she would see us fighting, we knew death was lingering around lol but those were really the days.