A flashing red light is a warning signal used in traffic control systems indicating drivers must come to a complete stop before proceeding cautiously.
Flashing Red Light cheat sheet for homework
Cautionary Tale: A story or narrative designed to warn others about potential dangers or negative consequences.
Precautionary Measure/Action: Steps taken beforehand in order to prevent potential harm or danger.
Vigilance: The state of being watchful and alert, especially to avoid danger.