* CrazyIsCool: Calvin. When you give a young MrImagination like him magical powers, you ''know'' things are going to be crazy cool!
* SugarWiki/FunnyMoments: Calvin spends an entire chapter antagonizing Percy in various ways. These include turning his hair into spaghetti, glaring at him, and threatening him with death for not saluting a wall.
** Everything that happens to [[TyrantTakesTheHelm Umbridge]]. ''Everything''.
--> '''Calvin''': (in a letter address) To Miss Mafalda, Mr. Yaxley, and the Ungodly Abomination ([=AKA=] losers).
* HilariousInHindsight: Calvin and Hobbes are arguing about who would win in a fight: Batman (Hobbes' choice) or Spider-Man (Calvin's choice). [[spoiler:[[WebAnimation/DeathBattle Turns out Calvin was right]]]].
* MoralEventHorizon: The Death Eater who killed Natalie was so ''callous'' about it that it counts (assuming he hadn't crossed it already).
* TheyWastedAPerfectlyGoodPlot: It should be pretty clear to Galaxoid and Nebular that Calvin ''isn't'' the Supreme Potentiate of Planet Earth, but they never bring it up. Might be for the best, and it makes it more heartwarming if you're of the opinion that they know this and still want to help Calvin because he's a friend.
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