Asshole Students

In almost every class there is always a group that doesn't give a shit about school.  They never shut the fuck up, make fun of everyone else, and make it a bitch to learn anything in class.  Think about it, why does the school make them come to class?  If they don't care about it, they don't, then why should they ruin it for everyone else?  They think they're cool talking non stop and making snide comments when the teacher is talking.  They obviously don't care.   Why should the students, and especially the teachers, have to deal with this?  If a kid doesn't make an effort to even try, they shouldn't be able to come to class.  Make 'em sit in the library, who cares, just get them out.