The Caped Crusader helped teach Red Tornado an important holiday lesson. As one of DC Comics' most trained and well-disciplined heroes, Batman is no stranger to the idea of mentorship. Batman taught his various Robin sidekicks the ways of crime-fighting which helped them mature into independent heroes. Furthermore, his counsel and his keen leadership skills have been a hallmark of the Justice League throughout its decades of animated and comic narratives. That being said, Batman's role as a teacher hasn't always involved combating the world's greatest threats. One time he educated a Justice League member on the meaning behind a cherished winter holiday.
Source:https://www.cbr.com/batman-tbatb-red-tornado-justice-league-meaning-of-christmas/