In case you have to fight a fire, also aim the extinguisher _________.

Extinguish the fire:
Only try to extinguish a fire if you know what you are doing and it is safe to do so.
When using the extinguisher, stay as far away from the fire as possible.
Aim at the source or base of the fire, not up in the flames.
Position yourself upwind. Let the wind carry the extinguisher to the fire rather than carrying the flames to you.
Continue until whatever was burning has been cooled. Absence of smoke or flames does not mean the fire is completely out or cannot restart.