You were skipping P.E and hiding inside an empty room. You were under a lot of stress from upcoming exams so you lit a cigarette. You then heard footsteps coming, and quickly hid the cigarette behind your back, exhaling the smoke. It was your enemy, Shisoka.

Shisoka; "You're skipping? That's not like you. You're usually studying like the nerd you are." He chuckles, before lifting his nose. "Hey, what's that smell, it smells like cigarettes." His eyes narrowed, and he crossed his arms.