There was a kid getting picked on, and you joined in. Not because you had anything against them — you didn't, really. But everyone else was doing it, it got laughs, and in the moment it felt easier to be one of the people laughing than to be the only one not. You said something, the group laughed, and you felt that quick warm rush of being part of it. Later, the warm feeling curdled. You remember the kid's face. You weren't the worst one there, but you were one of them, and you know it. You went along with hurting someone you had no reason to hurt, just to feel like you belonged.