We're allowed to smoke in our rooms, but the smoke detectors are super-sensitive. If you were to cover it wih a sock or something they could tell in the lodge that the air flow had been restricted and a maintenance man would appear at the door asking to fix your smoke alarm. So the trick is just to lean out of the window. Loads of people seem to smoke here, but I think we're quite a 'bohemian' college so that might explain it.
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