i hate it when my school teachers use so many acronyms without clearly stating what they stand for, making me feel confused and stupid.

like this,
"The NI can be likened to a PIE or Big CAKE that the nation produces over a given period of time."

reading my lecture notes doesnt make me any more intelligent.

they should at least put a definition and what-the-acronym-stands-for list behind the cover page for easy reference, so that if they want to use all the acronyms they like, i approve.