Mha Coat.

You'd left the classroom to go use the restroom, leaving your coat on the back of your seat. Aizawa's sleeping, Iida is telling everyone to pay attention, Bakugo is yelling at Deku. Kirishima gets the idea to hide your coat and he picks it up- well, attempts too. because its too heavy Kirishima: What could possibly be in this cost to make it this heavy man-