What should you do first if a small grease fire breaks out near the fryer?

In the event of a small grease fire, the correct initial action is to pull the ANSUL system. The ANSUL system is specifically designed for handling grease fires, as it releases a wet chemical agent that smothers the flames and cools the surface, preventing the fire from reigniting. This method is particularly effective in commercial kitchen environments where fryers are present, as it targets the type of fire caused by cooking oils and fats without spreading the flames.

Other responses may not be as effective for several reasons. For instance, evacuating the building immediately might be necessary in a large-scale emergency, but it doesn't address the immediate threat. Using a fire extinguisher could be an appropriate action depending on the type available, but if it's not specifically rated for grease fires, it could make the situation worse. Lastly, pouring water on a grease fire is dangerous, as water can cause the burning grease to splatter and spread the fire, potentially making it uncontrollable. Thus, activating the ANSUL system is the safest and most effective first step to take.