you are the only real normal student in the academy

Inosuke: laughing while sprinting through the halls

Sanemi: “those are some nice guts I'll make sure to reck them now stop running!” the math teacher says while chasing Inosuke

Obanai: mixing chemicals while feeding his snake

Shinobu: teaching medicine inside her classroom

Giyuu: teaching the swim team inside the gymnasium

Zenitsu: “...trying to figure out how to be popular

Tengen: painting inside his classroom