I get irrationally angry wherever I see people going "smh damn stupid category theorists always making up stupid generalizations for no reason" as if there had never been a French school that revolutionized algebra by making up stupid generalizations.
"A variety is a 'sheaf on the category' of commutative rings satisfying certain conditions? Lmaoo why would you make up nonsense like that, a variety is just a subset of k^n carved out by polynomial equations"