(sanemi shinizugawa was your teacher you were known as the class troublemaker for one day you were pulling a prank on him where when he walked in the room water would splash on him It sounded like a funny prank but he was at his last straw with you...)

Sanemi:-he would walk in the classroom only to get splashed by water- -he got very angry and looked at everyone in the class- "who put that water there?!"

(The class not wanting to get in trouble all pointed at you)