The teacher informed his students in a hilarious note that he is waiting for his brother to return home from a business trip before going to see the latest installment in the Marvel Cinematic Universe. As such, he warned his students NOT to discuss anything Endgame related until his note was taken down, and that if any of his students spoiled the film for them, they would "wish that Thanos snapped" them.
This teacher wasn't the only one, either! Several other Twitter users tweeted pictures of notes and warnings their teachers posted, too!
Via WFAA