When I was in grade 12, there was a guy in my math class whose mother had passed away in 2019 (not exactly sure how she died though). Someone had made fun of his dead mom and the guy turned around and punched him in the face. The guy was suspended for a few days. I lost my mother in 2017 so I could totally sympathize with the guy. Joking about someone's dead parent is a surefire way to end up with a black eye and a fat lip.