How does Christopher Boone react to change of any kind in The Curious Incident of the Dog in the Night time?

Christopher Boone, the protagonist of "The Curious Incident of the Dog in the Night-time," struggles with change and uncertainties due to his autism spectrum disorder. He finds comfort in routine, order, and predictability. When faced with unexpected changes, Christopher often experiences anxiety, confusion, and disorientation, which can trigger meltdowns or shutdowns.