One of the reasons I adore the Sarah Jane Adventures is because it doesn't talk down to kids. Much like the classic series, it doesn't have flashy special effects but focuses on character development. And "The Curse of Clyde Langer," we get to see some amazing stuff from Clyde. When an unfortunate encounter with a strange totem pole, he suddenly becomes despised by all his friends. As he is turned out by Sarah Jane, Rani, and even his own mother, I just wanted to go *SQEE* and hug him closely.
Amidst the heavy subject matter, Sky provides great comic relief, breaking lightbulbs in Haresh's office and giggling at a storm of fish. A brief mention to "the greatest medicine man" suggested the Doctor to me, but I'll have to wait and see.