The second reason is to help make people more often it is. The incident occurred in the area. Many people in the area, as if there was an argument between others.
The second reason that makes people helped each other over and over again, is. The events occur in areas where there is. Many people live in the area, such as if there was a brawl occurred between others.
The second reason is that the people often help each other. There is another event that is happening in the area that a lot of people are in the area, such as if there was a quarrel between the other.