Sometimes we just need someone with the expertise to help with the event that we are unable to cope or beyond our control, such as rescue, firefighter.
Sometimes we just need someone with the expertise to help with the event that we can not cope on their own or control more than we would like rescuers, firefighters.
Sometimes we just need someone who specialize in assisting with the event that we can"t get the hand itself or beyond our control. Such as rescue, firefighters.