The evils of Powerpoint

I had a professor once who had a little too much fun with the kitschy features of PowerPoint. All of her graphics and photographs appeared with animations; all of her bullet points flew in one way or another. Moreover, the animations were often accompanied by sound effects: whooshes, squeals, machine-gun ratatatatats. The audio-visual equipment in the large lecture hall had a few glitches, and the sound effects would often come late, seconds after the graphics or text had appeared; thus, we were often subjected to surprise blasts of echoing gunfire sounds. I don't know for sure whether the professor did this to keep students awake and attentive. It certainly did wake me up a few times when I was getting drowsy, but more than once it interrupted the professor mid-sentence. You might think that the professor would have realized what a terrible distraction this was, but the sound effects and animations continued all semester.