What are the specific words when a child ruin's other child's work?

When a child ruins another child's work, they might say something like "I'm sorry, I didn't mean to," or "I was just playing." The child whose work was ruined might express feelings of frustration or sadness, saying, "You messed it up!" or "That was my hard work!" It's important for both children to communicate their feelings and resolve the situation collaboratively.