Fridge Brilliance: At first, it seems ridiculous how Orel can misinterpret anything. Then you realize that Moralton's educational system is backwards (at best) and that most of the people he interacts with have...flawed morals. Also, the "Lost Commandments", which were made up by Clay and/or Clay's mother and were used by Clay to further control Orel.
The "Lost Commandments" are actually a family tradition for Clay. In "Passing", A young Clay is seen quoting one of these "Lost" Commandments.
Fridge Brilliance: This entry from the Crowning Moments of Awesome Page did it for me:
Sick of him, Reverend Putty, Officer Papermouth and Doctor Potterswheel get ready to beat the shit out of Clay in "Sacrifice" - then they decide that he isn't worth it and walk away. (Awesomer when you remember that Clay's dad does essentially the same thing— even as an adult, Clay seeks attention through abuse— and fails.
Fridge Horror: When you consider the fact that Orel's short claymation film includes his dad's belt wrapping around puppet Orel like a snake.
'Nuther Fridge Horror moment: I dunno which episode it was exactly, but Clay references Satan as the "Lord of the Flies." In the hunting trip episode, while Clay is raving like a lunatic while drunk, we see that there are quite a few flies crawling all over him as he becomes angrier. Symbolism?