I love showing this video on my first day with new students. I include it as part of my explanation of classroom procedures by saying something like this:
I expect that when you are in this class, you will have your cell phone completely put away so that it’s not a distraction to you. If I see it, I will take it. I used to have a different policy but after an incident during my first term as a teacher that happened to be caught on tape, I’ve softened a bit.
I then point to one of the security cameras in the corner of the room and explain that this room is always under surveillance. I then say something vague about the administration and lawyers getting involved in this incident and me being fortunate to still have a job.
I click play and watch students’ jaws drop. The room is silent except for a little shuffling as students put their phones into their backpacks. This is one of my favorite moments of each term.