* HarsherInHindsight: Mr. Keating breaking down in tears after he discovers that [[spoiler: Neil killed himself]] has now just become a thousand times worse to watch now that Creator/RobinWilliams himself committed suicide.
** It also makes Mr. Keating's speeches about "carpe diem" and seizing the day before it's gone ''heartbreaking''.
* HoYay: Neil and Todd. It's virtual canon, to the point that most of the fanfiction circles on them.
* HilariousInHindsight:
** Neil does, in fact, [[Series/{{House}} end up as a doctor]].
** A [[RetroactiveRecognition young]] [[Series/TheGoodWife Will Gardner]] vying for the affection of a girl in a serious relationship with a popular guy. (Got somewhat HarsherInHindsight after [[spoiler:[[McLeaned Willís death]], by ''gunshot'', to boot]], in season 5.)
* ItWasHisSled: [[spoiler:Neil]]'s death.
* LauncherOfAThousandShips: Charlie is paired with nearly everyone in fanfiction, mostly under the logic that he probably wouldn't object.
* MemeticMutation: The "carpe diem" speech got a ''lot'' of play on Tumblr in the wake of Robin Williams' death.
** Not to mention "O, Captain! My Captain!"
* MoralEventHorizon:
** Neil's father [[spoiler:driving his son to suicide, albeit inadvertently]].
** Cameron was always TheFriendNobodyLikes but [[spoiler: selling out the whole club just to save his own skin?]]
* {{Narm}}: The BigNo is ruined by the slow motion and [[spoiler:Neil's father being played by Kurtwood Smith from ''That70sShow'']]. You can ''almost'' hear him screaming "[[spoiler: NEIL, YOU DUMBASS!!!]]"
** Well, [[HilariousInHindsight that last part wasn't exactly their fault]].
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