I have a son with autism, have you heard of it? 
Yeah I have, Autism is a developmental disorder characterized by troubles with social interaction 
Yea my son has trouble focusing in school and his life is tough, do you know how many people are affected by it? 
A lot really, Does he have repetitive behavior.?
He does, he often goes to bed at the same time and reads the same childrens book every night, its like he never does anything different. 
I see,  Parents usually notice signs in the first two or three years