Mastery of 6 Thinking Hats

To become a master of facilitation with the six thinking hats practice you have to be Kevin. He is the central character of the film "Split" (directed by M. Night Shyamalan in 2016), who suffers of dissociative identity disorder. If you learn how to manage a DID and control your personalities, that might serve as an impartial and clean way to change of a hat in any situation.