Honestly, this chapter is so true to life, it isn't even funny. So many of these things assume that the person who appears to be more aggressive is at fault without looking into how the situation even occurred. And people tell you to ignore it all, saying that the reaction is what the bullies want, which is one, not always the case (see this chapter), two not possible if the bullies are targeting you physically or your stuff or interfering with your schoolwork.
(I've been there myself, and usually the teacher refused to believe me… because I'd rather stand up for myself than run to a teacher and hope that they actually do something effective. Well, I never did anything physically in retaliation after elementary school, since I was always small for my age and unathletic, so I was more verbal, but the point remains.)