Why did the Grinch REALLY steal Christmas? It wasn’t evil… it was behavioral. In this video, I break down The Grinch Who Stole Christmas using Applied Behavior Analysis to explain his learning history, motivating operations, escape-maintained behavior, and the moment his entire reinforcement system shifts. As a Board Certified Behavior Analyst (BCBA), I’ll walk you through: ✔ The Grinch’s early learning history and conditioned aversions ✔ Why Christmas became an aversive SD ✔ How escape and avoi