I wasn't born yet but here's an interesting 9/11 story for yah.
My Dad's co-worker at the time didn't even find out about 9/11 until September 14th or 15th. The guy wasn't out in the woods or anything he just was very reserved and didn't talk much. He didn't listen to the radio, didn't watch TV, he just went to work and then read when he was at home. He didn't even read the newspaper.
3 or 4 days after 9/11 he heard some other people in my Dad's office talking and he asked them what they were talking about. They pretty much said "What do you mean? Do you not know?" They then informed him about what had happened.
He didn't have a disability or anything, he was just shy I guess. Funny thing is he probably could have gone another week or so without finding out about it if he hadn't decided to talk to his co-workers.