Baseball's unwritten code

Below are two timely articles about retaliation and the "unwritten code" of baseball. The articles speaks for themselves, but it is significant for a few reasons.One,the players expect some pay back for Carlos Quentin's charge to the mound against Zach Greinke, and for the pitches that hit Puig and Greineke.
Secondly, there is a recognition of how dangerous "purpose pitches" can be when they are thrown at vulnerable areas of the body.
Thirdly, there is a consensus that even a pay-back pitch must not be thrown in the neck/head area.
These issues are examined in a fictional setting in A Pitch For Justice on Amazon.
http://www.amazon.com/A-Pitch-for-Jus...
http://msn.foxsports.com/mlb/story/Do...
http://msn.foxsports.com/mlb/story/Do...