Local papers are often accused of attempting to boost their sales by giving a disproportionate amount of space to stories of crime, disaster, and misfortune.
A friend once confided to me that she couldn't enjoy playing on her racquetball team because many of the other players seemed to be using the game as an opportunity to let out their pent-up anger.
The comment "We just have to let nature take its course" is sometimes spoken optimistically, implying that a certain disease will run its course and then the patient will be well.