You have to be carefull about things that are still technically legal. There's a story I heard ... may be true, may just be a story ... from a local long established university, about a student who found out that apparently it was still in the charter that he could request a glass of wine while taking his exams. He duly requested it, and after checking, the staff found that yes, he could request his wine.
I'm sure you can see how popular this idea might become, once word of it spread, yeah?
At the next exam, he again requested his wine, and it was pointed out to him that if they were to follow that university ordinance, they'd likewise have to follow another, and fine him for not wearing his dress sword while taking his exams too.