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* ''ComicStrip/{{Dilbert}}'': The [[PointyHairedBoss defining character trait]] of Dilbert's boss was a result of this. In the earlier strips he was just a regular BadBoss who was more likely to be shown performing evil experiments on his employees than [[TheDitz losing at chess to a pineapple]]. And done deliberately in one strip where a new guy transitions from appearing to be smarter than everyone else in the team to having neanderthal-level intelligence over the course of a ''three panel comic''.
* ''FoxTrot'': Roger, the father figure. In the earliest years of the strip, he was a competent enough patriarch, though a bit harried and somewhat of a TedBaxter. As the strip went through ReverseCerebusSyndrome, his intelligence dropped severely and his occasional bouts of incompetence (he was a WalkingTechbane from the first month onward) became exaggerated to match.
* ''{{Garfield}}'': Jon Arbuckle, Garfield's owner. He started as a perfectly ordinary young man. Come the early-2000's, and he's a total moron who finds interest in mundane activities, mistakes a sudoku for a crossword, and mistakes an upside down restaurant menu for French. It was around the same time he was [[{{Flanderization}} Flanderized]] into being the StrawLoser to Garfield.
* ''{{Peanuts}}'': Sally Brown started out as reasonably na´ve and childish before devolving into a full-on TheDitz who made hilariously inaccurate school reports.
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