You were having a totally normal afternoon. Then your little brother knocked over your project — the one you'd spent an hour on — and something inside you went from zero to furious in a single second. You shouted. You might have shoved his arm. The anger felt enormous and hot and completely out of your control, like it had been waiting just under the surface. Now he's crying, the project is still wrecked, and the anger is already fading into something else. You're not even sure it was really about the project at all.