Did a student put horse laxative in the lemonade of his school in revenge for bullying and was it captured by a video posted on Facebook? No, that's not true: The video purporting to show the reaction to the spiking of the lemonade is actually a clip from a "mockumentary" using actors in a production for Netflix. The footage came from the show American Vandal and has been circulating online since at least 2018.
The story originated from a post (archived here) where it was published on September 25, 2018, on a page called Hood News. It message posted with the video read:
Student puts horse laxative in the lemonade of his school since he suffered from bullying and that was his way of getting revenge
This is what the post looks like on Facebook:
The video is from season two of the Netflix series "American Vandals." Here is a trailer for that episode:
The original use of the video as purportedly real appears to be in a Live Leak post you can view here. Soon after, many others were posting on social platforms as if it were really a school prank.
If it were a real incident, the student would have been arrested and charged with a long list of crimes. But these are not real victims, they are actors with some very gross special effects.