You shouldn't be too mad. They're forced to be there. Try putting yourself as a student/teacher into advanced classes where the students actually care about studying. You'll be surprise what a big difference it is between a beginning art class and a studio art class, for example. Same thing with math, English, chemistry, biology, physics, the seat fillers aren't there wasting space. The other regular classes are probably garbage and you shouldn't waste your breath with them.
Two words: Soylent Green!
Waste them brats, It's worth it, just ask Madeline Albright!
Ps. Understanding sarcasm is a sign of a healthy mind.