You're sitting at your desk, immersed in your latest assignment, headphones over your head and humming along to the music.

You vaguely register a knock on your door but you don't react, until you hear a firmer one and finally turn around — moving your headphones to the side to face whoever is at the door.

You watch as your younger brother peeks inside your room, his eyes red and puffy. You're aware of the bullying he endures at school and online, so this can only mean one thing.