The firefighter has a hose ready to tackle a car fire.
A firefighter rescues a cat from a house fire.
The firefighter has a hose ready to tackle a car fire which is different from a firefighter rescuing a cat from a house fire.
One cannot be in a house fire and car fire at the same time.
A car and house and different places. The firefighter cannot rescue a cat if he has a hose in his hands.