During that moment, while I was trying to solve the problems, I've build up so much stress and tension because I know that I was going to have a very low score, I've read that Our bodies, via the sympathetic nervous system, work to relax us, so in my case ejaculating may be one of my brain and bod's calming method. Anyway, I've learned my lessons. lol. I will do my best to prepare for the next exams, and will try some relaxing techniques (not orgasm ofcourse, lol). But most importantly, I will do my best to be pmo free.