In this case, P.R.= Premature Reprimand.
Varsity chain yanker, Chaz Gagne, pulled another one the other day.
Your intrepid editor merely wished him a happy birthday (in as few keystrokes as possible) on Facebook.
He then mentioned he had just seen a classmate.
Your editor immediately Chaztised him for not taking a picture for the blog.
Which he posted a moment later.
Nice.