LOL I picked up my pet peeve in college from a history prof and one of his teacher assistants. I suppose I knew better prior to college because I had great public school English teachers, and my mother was a grammar nut.
I suppose that my public school teachers did try to teach me grammar at one point or another.
I do remember sitting through an English class in 11th grade BORED out of my mind as the teacher tried to explain to the class what adverbs were and how to use them.
I could not have cared less. (My pet peeve is those who say “I could care less” when they really mean that they could not have cared less.)