For those of you who have never seen a Scantron machine at work, here it is. For those of you that have seen a Scantron machine at work, here it is again. We were grading some math tests. Sorry it's so short, but the teacher made me stop recording. Each click is a wrong answer, and yeah, it was a hard test.
![](https://i.ytimg.com/vi/K1YvjQzpq2c/mqdefault.jpg)