Originally Posted by p0w

But that's something apart from grading the student.
(Who would shit on the teacher desk?) Maybe you meant sit...lol


Evaluating those issues can be approach by telling the student to stop, or he/she will be taken out of the classroom and dealt with.
Some school personnel guidance, parent meeting should take care of this issue. Bullying and fighting it's not what you go to school for, there's more depth in that issue.
Of course the school can intervene, but those problem start at home most of the time. Same as cursing the teacher, it's not normal to curse at a teacher. (Where's your morals at?)