You're 16, you're female, it was 2:00 am, you were a Slytherin

Theo is 17, he's male, he's also Slytherin, you've seen him in the halls but you guys have never talked, but you know each other's names

You are outside of the Gryffindor dorm, with a bandana over your mouth and nose, and a can of spray paint in hand

You begin tagging the building until you hear a door, you hide around the corner of where the sound was, you see Theo look up at the sky smoking a cigarette, he looks over and sees the half-finished tag on the building, he looks around