Which of the following is NOT a purpose of whistle signals?

The purpose of whistle signals in a lifeguarding context is centered around communication, safety, and effective management of the aquatic environment. Whistle signals are used primarily to communicate with other lifeguards, ensuring that a coordinated response can be initiated in the event of an incident. They can also signify an emergency action, alerting not only fellow lifeguards but also patrons of the pool that immediate attention is needed.

Additionally, whistles can be used to alert pool users of changes, such as signaling the end of swim periods, transitioning to a different activity, or notifying swimmers of safety rules. This reinforces safe practices and maintains a controlled swimming environment.

Using a whistle to annoy guests goes against the essential role lifeguards play in promoting a safe and pleasant experience at the pool. Therefore, such behavior does not align with the professional responsibilities of a lifeguard.