For example, heavy liquefied petroleum gas (LPG) cylinders can cause muscular strain when
they are handled manually. However, if the cylinder is damaged causing gas to leak which is
then ignited, a fire could result in serious burns. If that leak occurs in a store room or similar
enclosed space, it could result in an explosion that could destroy the building and kill or
injure anyone nearby. Each of the outcomes involves a different type of harm with a range of
severities, and each has a different likelihood of occurrence.