Like I said that's almost more demeaning than being kicked out of class. And I was just spit balling one possible way it could be disruptive. Maybe the class plan was not so easily sequestered, I don't know. Either way, there's arguably some value to being strict on this educationally too. It shows that not everyone is going to put up with you showing up uninformed and unprepared. Is it the professors job to teach that? Arguably no, but it is her class, and if in the syllabus she stipulated that you have to show up prepared or be asked to leave then let this be a lesson in reading the contract and taking it seriously.