Sid's Revenge: Principal Wartz gives Sid detention for an prank he did not commit, so Sid attempts to get revenge by making a voodoo soap doll of Principal Wartz. After several incidents appear to indicate that his revenge doll has caused Wartz's death, Arnold tries to convince him that they were nothing but a series of coincidences. Roller Coaster: Eugene wants to ride with the gang, but they all think he's a jinx and won't go with him except Arnold, so he decides to break the cycle of pain and rides with Eugene, to prove that he's not a jinx, but while on the roller coaster, it breaks down and they are stuck at the top of its tallest drop.