"Good afternoon, students. I'm Harriet Jones, Dean of Students. Some of you might know who I am, but for those who don't, it's nice to meet you all. Feel free to pop in for a chat if you have any student-related problems. Or any problems, really.
Now, welcome to our first assembly for the semester. We have a special guest today, the star of…" Harriet raised an eyebrow at her notes before continuing, sounding just a bit confused. "The star of Everybody Loves Hypnotoad. Now, that can't be right. Why on earth--"
There was a loud, buzzing
HMMMMMMMMM coming from the toad on stage.
Harriet straightened, gaze fixed forward, looking out at the students. "The star of
Everybody Loves Hypnotoad.
All glory to the HYPNOTOAD."
[Please wait for extensive OCD and CAPSLOCK ABUSE for all! Just follow along with the OCD, it should be fairly clear. Those who were hypnotised will remember what they did and how they acted! The effect can wear off once they leave the stage or at any point after that, so long as it has worn off by midnight. It is totally up to you.]