I go to school in Italy right now and it only consists of two buildings. There's a beautiful terrace on the third floor in Building B and it overlooks all of Rome. My 5 PM class was on the fourth floor, so a few minutes before class I decided to toke up on the terrace, not expecting anyone to come out. I only pack a three-hitter for this very reason.

Right when I get done smoking, someone comes out and instantly says "You smoking weed, man?" He had that long sideburn, glasses intellectual look so I wasn't sure if he was a student teacher of some sort, so I took the safe route by saying "What? uhh.. noo"

But then I figured out he was a student and was pretty cool, so I fessed up. So I guess my answer to the topic is I would deny deny deny until your credibility is built up, in which I then admit defeat.