The document describes the narrator's experience skating and injuring their arm. While skating, the narrator fell and broke their arm, causing a lot of pain. They were taken to the doctor and had to wear a plaster cast on their arm. When the narrator's parents found out about the injury, they became angry and tried to force the narrator to stop skating, seeing it as too dangerous. However, the narrator disobeyed and continued skating after recovering, training to improve their skills. Skating remains an enjoyable sport for the narrator.