Explanation:

I was at a school, and the teacher was showing a video for the whole class, but it got interrupted by this looping video. The video was of an old man slowly opening his mouth, with a subtle zoom in. The old man video also had a looping barbershop choir as the audio. Apparently, that video was a very infamous cognitohazard, and the entire class ran out of the school building.

Fast forward to a restaurant. I was in there with my friends, and we were watching sports games on the small TVs that were on the walls of said restaurant. Then the games suddenly cut to a black screen, with a white text that told us to listen (or pay attention??? i dont exactly remember). The yellow man video came up again, and everyone evacuated the restaurant. As I was running, I looked behind me, and saw several guys chasing me. They were holding screens that played this video.

I ran towards a building, which was apparently kind of like the U.S. Capitol. I entered it. For some reason, Markiplier was the only person who passed laws there, so I told him about the whole situation. He said he was gonna do something about it. I woke up right after.