When I was in elementary school, I would often find it awesome whenever a classmate brought a laser pointer. While the teacher was writing something on the blackboard, he would use it to capture the attention of every single student in the classroom. And as I grew older, I once again became fascinated with lasers as I saw them gaining back the popularity.
But it's not always fun when it comes to using lasers, and this man had to learn it the hard way. Read on!
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