Has it ever happened that tasks entered the sprint unexpectedly? How did you react to it?

Yes, unplanned tasks sometimes appear in a sprint, especially when urgent bugs arise or business priorities change. In such cases, it's important to stay flexible and assess the impact of the new task on the current plan. Usually, I discuss with the team and the Product Owner to understand how critical the task is, and if necessary, we adjust the sprint scope or move less priority tasks. The main thing is to avoid constant chaos and maintain transparency in communication.