In this edition of Mistake of the Week, Mark Graban tells a story that didn’t appear in any safety report or headline — it happened on a pickleball court. Early in learning the sport, Mark found his old tennis instincts taking over, leading to a very incorrect serve and a moment of embarrassment. What followed was a small but meaningful lesson in feedback, psychological safety, and the challenge of unlearning deeply wired habits.

Supportive coaching, timely correction, and a friendly playing environment turned an awkward mistake into a productive one. Mark reflects on why unlearning is often harder than learning, and how leaders can create conditions where people feel safe enough to improve.