If this episode didn't prove that Belson has serious problem, I don't know which one will. Every attempt of him trying to be a complete tool to Clarence backfires, causing him to look like an even bigger jerk every time. And every instance, Clarence is beloved by all, causing him to one up him horribly. I swear that his "friends" only hang out with him because of his money and he makes them. It's a nice touch to the series. As much as the Charlie Brown expy was seen as an antithesis of Clarence, so isn't Belson. And remember, the pilot episode had Clarence barely making any friends. As the show goes on, everyone adores Clarence, and Belson gets shunned by the entire student body, minus the kids he forces to be his friends. That's a nice little heartwarming message for the series. Clarence was the overly optimistic kid that couldn't make friends at first, but by staying positive and outgoing, he earns the love and respect of his peers. Belson's a jerk, he's lost all clout he had with the school, and soon enough even the kids he makes hang out with him won't hang out with him. I hope they keep that thread up.
Also, poor Joshua. He's completely lost it and gained weight in "Chimney." He's a jerk and all, but not even Belson deserves that.