* It's not uncommon for political cartoons to have a simple message with each side, country, ideology or issue explicitly labeled. However, this does not necessarily mean the cartoon is of low quality: in most cases it's done to avoid ambiguity or at least the kind of miscomprehension that leads to angry letters to the editor.
* Bill Watterson admitted that the GreenAesop in a ''CalvinAndHobbes'' story where Calvin and Hobbes took a trip to Mars was "pretty heavy-handed."
** Still, [[http://www.platypuscomix.net/otherpeople/watterson.html his cartoons on his anti-commercialist views]] need to be seen to be believed. Watterson was under constant pressure to sell out during the original run ''CalvinAndHobbes'', something that embittered him quite a lot.
** An in-universe example is Calvin's story "The Dad Who Lived to Regret Being Mean to His Kid", which he asks his dad to read to him.
* Sometimes ''{{Mutts}}'' doesn't have a joke. Instead there's an ad for some save-the-animals cause, one that doesn't even feature the regular cast of the strip. It's like if the last five minutes of ''Seinfeld'' were replaced with a PETA infomercial.
* Hey, {{Nemi}}-readers? Being cruel to animals is bad, okay? Got that? Too bad, because we're gonna repeat it a hundred times anyway.
* ''MallardFillmore'' wants you to know that liberals are bad, bad, stupid, stupid, bad, bad people. And they're stupid and bad, MMKAY?
* And Ted Rall wants you to know the same thing, except about conservatives.
** Same goes for Tom Tomorrow. Many of his cartoons don't even contain jokes, they're just quoting something stupid a republican said, or an offensive part of GOP policy, with an optional riff on why it's stupid.
* Spoofed in one ''BloomCounty'' arc where Milo has a nightmare about being a cartoonist with a black-hooded TortureTechnician as his "boss", punishing him for typos and the like. After he [[CatapultNightmare wakes up]], he starts to deliver a speech about how great is is that we have cartoonists, only for Opus to walk in with a level glare on his face and say "Oh, just stop."
* On multiple occasions, ''Bloom Country'' would let the anvils drop. One strip in particular was a parody of ''Franchise/StarTrek'', and basically ranted about the shrinking amount of space available to newspaper comics.
* ''Doonesbury'' is so heavy with some of its political commentary that some newspapers put it on the editorial page.
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