A girl called Emma was at a sleepover where the energy kept ramping up — more sugar, less sleep, louder games. By midnight, everyone was overtired and overexcited, and the mood flipped. Someone got upset, two friends snapped at each other, and what had been fun turned into tears and tension over almost nothing. Nobody had done anything truly wrong. They were just exhausted and overstimulated, and their feelings had gotten too big to manage. The fun had simply tipped over an edge that no one saw coming.