The Curious Incident of the Dog in the Night-time

Consistency and predictability make Christopher feel safe. For example, white noise from a radio and pressing it close to his ear makes him feel safe. It is the consistent predictability of the sound that is comforting to him. Consistency is also the reason that Christopher enjoys Mathematics.

Christopher finds people confusing, he also feels unsafe when faced with new things or occurrences.... anything outside of the norm.