Exactly. A know a girl who's been suspended for talking in math REPEATEDLY and making out with her boyfriend in the hall REPEATEDLY and suspended for it. Her mom thinks the school is picking on her daughter.
Our school is supposed to be a "3 strikes, you're out" kinda thing. And most parents who have a kid that's up for expulsion just pull the kid out so it doesn't go on their record as being expelled.
My school is about 25 minutes away from where I live. The way ours is set up is that my mom drives me and my sister to the elementary school and then a bus takes the middle school and high school kids to our building.