I am thinking of crop-dusting everyone in my first class.
That's not good. Why do you want to dust them with herbicides?
Because of the people. I can't sit next to them.
What's so bad about the them? Whatever it is, if you really need the class, you can learn to live with for one semester.
Because I just can't handle them that long.
A semester is not that long, you need to work on enduring small annoyances. Like spending one period with them for a semester to achieve what you really want which is graduating.