From what I got from the cartoon was that the Banner just scours the globe looking for a cure for his affliction, constantly bitching like Edgar Poe for Lenore. Then someone pisses him off, he turns into the Hulk and beats them down, and makes the ocasional friend ala Frankenstien, and then bugs out cause he thinks they don\'t like him anymore. He\'s a very high maintnense super hero, needing constant reassurment.