Chronicles of Glenn!

The teacher starts boring him with the fact that humans were once monkeys. Glenn starts snickering and watches the movie she shows after the lecture 2001: a space oddessy. She is almost in tears as the monkeys touch the obelisk, she takes a small pill out of her pocket and pops it right before the hypnotic star child scene. What was that?
Inventory:
Paperclip (at the ready)
Notebook (pen in hand)