look, you keep getting sent here. we might as well be friendly.
hey. i know where you're coming from. i was a kid once too.
okay, you aren't a kid. you're a young adult. with some issues. let's explore them.
hey. i'm reaching out here. your plays for attention are a cry for help, aren't they?
is it a problem at home? with your parents?
maybe i ought to split you and your sister up.
hey. you're antisocial, antagonistic, and now violent. the point of high school is you learn to develop a place for yourselves in society. 
as long as you're at this school young lady, i better like it. ginger gives him a cold, dead stare.
consider this your final warning. i see you outta line again, and we're talking expulsion. and don't look at me like that, missy.