I believe that he is happier before the operation. I believe this because you never see a time when he gets mad. However, when he is smart, he gets mad more than a few times, for example, when he flipped out on Dr. Strauss on stage he was enraged. This cannot be seen when Carlie is dumb. No matter what is happening, he is always smiling and joking around, but when he is smart he's never happy and always so serious. For example, when he is being made fun of at work, he doesn't even realize that he is being insulted. He just smiles and says, "I pulled a real Charlie Gordon there," or something along those lines. But when he is smart he realizes how much that hurts and is no longer happy even though it is the same situation. That is way I think
