A character's bad behavior is a result of being influenced by their relatives.
- That's it! Detention in the unabridged version, starting from now. Didn't your parents teach you any better? …Oh, right, they didn't.
http://tvtropes.org/pmwiki/pmwiki.php/Laconic/ToxicFamilyInfluence
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A character's bad behavior is a result of being influenced by their relatives.