Not from my high school years, but from my sisters who went to the same high school as me. This is from her grade 11 and grade 12 years. Grade 11 senior prank, guy buys fireworks and sets them off in the cafeteria of the mall across the street. Everyone gets banned from going there during lunch for a day. The mall lost so much money in that day, the students were allowed back in. Grade 12 senior prank, in the main hallway somebody puts up fishing wire to clothesline people. Which is a horrible idea cause they can cut you really badly and all plus it’s invisible cause there weren’t any windows in the hallway. A teacher walked into it and immediately got senior pranks cancelled