Okay so I don't know about the rest of you but when I first played Skyrim, I got addicted. Like, scarily so. Yeah, so, the Muggleborns play Skyrim and other equally-addicting video games and decided to start a club.
But eventually they just ignore all their schoolwork to play the games and Dumbledore calls them into his office to confront them and he's like "explain yourself" so they show him the game and he gets addicted too