Regulations...

I was appointed as the invigulator for CSIS0406 exam at LE4 in the morning. A total of 6 out of 24 students went to the washroom during the 3 hours. I'd say the examination regulation about "a student must be accompanied by an invigulator to leave the classroom, if he/she is to return to his/her work" is a written non-existance. Am I being too serious?! At night, I had my German class again. I don't really feel I learn that much in class. I'm going to the class only to fullfill the attendance requirement in order to take the Start-Deutsch II test.