Which of the following is NOT a feature of a good lifeguard?

Post-incident analysis refers to the evaluation and discussion of events that have occurred after an incident, which is typically focused on understanding what happened, how it happened, and how future incidents can be prevented or handled more effectively. While this is certainly important in the context of improving pool safety and lifeguard performance, it does not represent a proactive feature of a good lifeguard's daily duties.

In contrast, professionalism, accident prevention, and early intervention are all key attributes of an effective lifeguard. Professionalism ensures that lifeguards conduct themselves with decorum and respect, fostering a safe environment. Accident prevention involves being vigilant and proactive in recognizing potential hazards and taking steps to mitigate risks before incidents occur. Early intervention allows lifeguards to address potentially dangerous situations before they escalate, thereby preventing accidents and ensuring the safety of pool users.

Thus, while post-incident analysis supports the evolution of lifeguarding practices, it is not a direct feature of what makes a lifeguard proficient and effective in their immediate responsibilities.