It is evident that seconds before a disaster, things remain quite normal. Imagine a guy being hit by the ball. He would never know before the split second that he will be hit by the ball. Hence, the expressions on his face would remain to be pleasant and normal. However, the expression after the ball hits his sacred part, expression changes drastically. This is the beauty of photography. It captures the moments before any disaster takes place and there is a huge contrast in the mood before the disaster takes place and the mood after it happens.
There is a huge difference in both the cases. Some of the cameramen are smart and quick enough to adjudge the situation and click pictures to showcase the mood split seconds before the accident takes place. It is a very interesting study and makes it even more interesting when the picture is taken microseconds before the disaster.