There was this really silly one in my country which became a minor meme when one of our Social Studies textbooks incorrectly stated the definition of socioeconomic status. They were talking about stuff like "speaking formal English at home" or "regularly travel overseas" means that you are elitist and of high SES. That is very broad and kinda a "take that" to how you actually classify different people of society into their socioeconomic status.
It's almost like Mr. Threehorn was saying, "Threehorns are the best, you ain't one so you're lower than me" in real life. The whole thing was dumb and certainly worth a laugh.