Maybe I guess. Both these guys upon passing them at work, one will always say 'how are you buddy' and the other will say 'Hi kreg' and it doesn't matter if it was only two minutes ago they will still say this. Doesn't this sound like autism or Asperger's? What else can it be? It's not manic dep or schizotypal or related. They just can't do much more than the basic tasks and sometimes not even that.