I think there is no one who looks back at life and can say that there has never been a time when they were hurt by someone. Perhaps from the outside, it may have looked like a trifle but inside that particular person, it reached a very weak point. When more of such trifle episodes happen it becomes a wound growing wound which even becomes infected. Each tiny thing that adds to it can hurt so much more than if it had fallen on healthy ground. Even years or decades later, a single thought can trigger the memory and those hurtings can feel as if they just happened.