Turns out Quentin Grimes had been slow-cooking his venting for a minute.
According to multiple beat reporters quoting New York Knicks players daily and after every game they play, Grimes had been leaving the locker room before media members were allowed inside of those confines for a few games in the recent past.
Those echoing the information include Steve Popper of Newsday, Stefan Bondy of the New York Post, and Kristian Winfield of the Daily News.
Just for context (as if you needed it), Grimes finally stayed put in the locker room after the loss to the Bucks in the In-Season Tournament quarterfinals earlier this week, on Tuesday, revealing his frustrations once and for all in front of everybody willing to listen to it.