I've my own office, so I can do basically what I want. But the bottle is in my bag, so if anyone knocks at the door and enters, I've enough time to put it back in the bag. And no , in France like everywhere else, it's forbidden to drink alcohol at work. But I ain't working in the first meaning of the word, I'm just a student doing some research on my computer (numerical computations about the propagation of special optical waves, the ones you can see in my sig).