Lol so there's supposedly a sound only young people can hear (don't actually know if it's true or not, and I don't care to find out) In sixth grade science, my teacher pulls up a YouTube video of it playing. When she asks who can hear it, a smart ass (who is actually quite intelligent) raised his hand along with a number of others. At the end of the video, it says "There was actually no sound at all you dumbasses" My teacher didn't know that was gonna happen; it was a video she just found. Also, on another occasion, involving the smart ass, he says "the wording on number ten was atrocious." My teacher promptly pulls him out of class to talk to him. Then at the end of class, he says that he wants to see him again. At the moment, the smart ass says, "I assume you're bringing me here to apologize." The whole class couldn't stop laughing for the whole of next period.