Actually, at this point it doesn't matter to me whether Adam's behavior is calculated or not, because it's reached a point where it's dangerous to his roommates and himself, since he was bleeding at the end of the last episode, presumably from punching out that picture. He's also behaved the same way multiple times now, even after being warned to cut it out. He just keeps maintaining that nothing will happen as a result of his behavior, and that's what he's going to keep on believing until it does. I didn't see him throwing the iron out the window, but if he does that, then he's gotten to the point where he doesn't care if he hurts a completely innocent bystander. I don't know what floor they're on, but an iron plummeting from any decent height could seriously injure and possibly kill anyone it landed on, depending on how it hit that person.
Adam is simply too volatile to be on the show. If an intervention had to be held for Ruthie's sake in Hawaii--and thank heavens it was, since she seems to have turned her life around--then Adam needs to be asked to go into treatment or get out too. Ruthie wasn't anywhere near the threat Adam is, though it still makes me shudder that MTV didn't stop her from getting behind the wheel of a car when she was obviously too intoxicated to drive safely. She's just very lucky she didn't hurt/kill herself or someone else.