Everybody thinks fire as a killer. It is so friendly when handled properly. Fire needs three things to withstand. One is oxygen, another is source and the other one is flammable materials. If any one of these is stopped, fire can be killed. So, when there is fire in your place, immediately take a wet cloth and tie around your nose for your oxygen supply. Then without delaying either cut oxygen supply for the fire, or removes all the flammable materials from its reach or immediately kills it with water. Large fire extinguishers are also of great use. But nobody knows how to use them or it could be out of their reach.