Hi, professor! Would you like to rant a little more about how we're always late to class and then go on a 15 minute spiel on random unc facts? Or maybe you'd like to assume that someone was late to class when they ask a question concerning something you never addressed in class. Or wait! You could waste more of my time by NOT passing around the attendance! So I came, played solitaire because otherwise I'd be asleep, and you post the notes on blackboard, and didn't get credit for it.

I don't have any pent up frustrations with a certain teacher's lack of ability to teach.

Nope, not at all.