common sense Discuss this oxymoron in the comments below. Shaunie Friday I have often said that “common sense” is the biggest oxymoron of them all–there's nothing common about it!! =] Takb Should be a MANDATORY class in high school for at leasy 3 years! Takb Should be a MANDATORY class in high school for at leasy 3 years! Jen Johnson This is probably the most annoying and funny thing at the same time. It can be very frustrating… but whenever I witness someone asking something ridiculous like how to read how to articles, it really just makes me laugh. This is one of the most famous oxymora in the country =). Great list! IcelappedUrFace Common sense is not common in common people.