We only see each other at weddings and funerals

Somehow we were all in high school again, but the lessons we were studying are more of kindergarten stuff. Weird. But hey we had fun again and it was art class. My favorite. The teacher specifically told us to bring cardboard and newspapers cuz we were gonna paint with poster paint on cardboard, and the newspapers are just laid on tables to avoid mess.

The table was arranged in a spiral manner around the class. Tina and I sat next to each other & we were giddy like the kindergarten-high school students we were. The teacher was sort of in a bad mood, but still stays calm to his students. He told us to pick a first color for the painting. I chose red, as usual (in the middle of preparing my cardboard cuz we were all mixing paint). The two Filipino girls behind us announced they chose purple, and Tina replied back "hey, I wanna choose purple!". The teacher broke their possible argument and went back to doing whatever he did. One of the Filipino girls said to her friend "don't worry, I'm sure there's a lot of flowers in our country that has this hue of purple". I began mixing red and yellow to make orange.

Suddenly I realized something. All the leftover cardboard and paper I brought in my backpack were all drawn on and not blank. I was sure I packed blank clean fresh empty ones on my way to school but these were all drawn and dirty. Not to mention torn. I was so sure someone punk'd me and that this is just another hidden camera prank show. The teacher caught me and within every repetitive question he asked, raised his voice louder and louder. I raised my voice louder and louder too answering his repetitive questions with "this is a hidden camera show" and "I was Punk'd or something". He's losing his patience but...

I was right. A bunch of girls and guys revealed themselves from their hiding spots, laughing at me and shaking my hand, saying congratulations and that I really AM in their hidden camera show. They were overly-happy and celebrating while I was in every right to be confused. The teacher yelled again, screaming "will somebody PLEASE tell me what's going on? Did you invite these blokes?" and I told him "no" before one girl from the group cut me and said "oh no, she didn't invite us. We merely came here on our free will to spread some joy".
The guy next to her didn't seem all giddy anymore though, he suddenly tensed up as he walked to our art teacher (who was about to yell again), his face looking all menacing. The rest of his group mates followed. He whispered harshly at the teacher "what do you want, punk?". The teacher wasn't at all scared (though he might be), he was more furious and ragedfilled-ly yelled "YOU'RE the punks who are uninvited! WILL YOU PEOPLE PLEASE GET OUT OF-" before the hidden camera show guy grabbed him by his clothes and repetitively SMASHED the poor-but-annoying teacher on the whiteboard. After he's done smashing the teacher, he growled "I don't need any of your opinion, you stupid bitch". He then glared at his scared and awestruck teammates, saying "c'mon team, let's GTFO" before his team followed and got out of the class. The last guy to go through the door kicked the teacher's body for the lulz.

Somehow I felt that this guy is heroic, despite his brutal actions to shut the teacher up from yelling at his students due to his bad mood. He was merely defending me, his prank victim. And his group. And my classmates. Also, probably for the sake of the pranks and camera moment, and the teacher's angry yelling might've ruined their prank & maybe that's why the guy turned furious.