"So?" "So- remember? His orders were not to sell them for ten school days. Okay. So the ten days came and went and he's still saying no." "So what?" This is what infuriated Obie- the way Archie tried so hard not to be impressed, to always play it cool. You could tell him that The Bomb was going to be dropped and he'd probably say "So what?" It got under Obie's skin, mostly because he suspected that it was an act, that Archie wasn't as cool as he pretended to be. And Obie was awaiting his chance to find out.