Quote Originally Posted by February
Im sure its been said before, but Sai has no emotions, and doesn't know how to act sociably. I bet that he doesn't even know the negative meanings of those words and probably takes it too literal in his head. I mean come on, if you don't even know what face expression to make all the time, how do you expect to know if your words will anger (what is anger? is it bad? ) the people you talk to?
Are you saying he doesn't have emotions or he's an idiot? Because only an idiot wouldn't understand what happens when you insult somebody. Emotions have nothing to do with it, other than they would either motivate you do it despite the consequences or not make it due to the consequences. Besides, he does have emotions. They are just supressed due to his Root background.

As long as a real AI hasn't been developed, humans can't even imagine what an intelligence really without any emotions would be like. Emotions are so deeply coupled with our own intelligence.