I have to sit next to an autistic kid in my 7th period, and he constantly grabs my paper, burps, and has his leg hanging out the right side of his desk, so I have to separate myself from the table. He also does stupid things like throwing erasers at people and then claiming that he didn't do it, and of course the teacher always believes him.
There's also this fat kid that I saw down two mid-sized gatorades in under a minute. Disgusting.