1943, rumours had it a student had been murdered on the girls' bathroom on the second floor, and as a prefect, you had to sneak out and see it for yourself

You were walking up the stairs when you saw Tom and Dumbledore talking, you stayed hidden listening

"About the school too? I don't have a home to go. They wouldn't really close Hogwarts, wouldn't they, professor?"

You stayed there, hidden for a few seconds before Dumbledore spotted you