Repression

You sit and eat your breakfast quietly while the two argue as usual. It doesn't involve you, so why get into it?

"You little fucking whore! You keep staying out all night, and you can just forget about living under my roof! Go fucking sleep in the street with the rest of the sluts!"

"Oh go fuck yourself Mom! You're just mad because you're a fucking bitter old harpy with nobody in your fucking life!"
"Why you fucking little bitch!" your Mom says and slaps your sister across the face.

Your sister holds her face and shuts up. She picks up her school stuff and heads toward the door, before exiting she says one last thing, before slamming the door.

"Don't worry Mom, I'm not staying in this fucking house another day!"

You finish up your breakfast, your Mom doesn't even acknowledge you're there, she leaves the kitchen in a huff rather quickly.

She must be really pissed.