Kevin Garnett is known for his, um, colorful reactions to calls he disagrees with, even on Christmas, and without regard for those around him.
During one of those calls in the first quarter, Garnett predictably reacted in angry fashion, berating the referee with a variety of negative reactions. Upon hearing the barrage of profanity, one intrepid older brother saved his kid brother, covering his ears up quickly to make sure he didn't learn any new words.
Watch the audience closely at around the 11-second mark to see the kind older brother protecting his next of kin:
That kid's got morals. Merry Christmas, everyone!