If you're in a dorm room and don't want to take any chances: 1) Spray some Febreeze right outside your door when nobody is looking 2) De-activate your smoke detector 3) Lay down duct tape over the cracks of your door 4) Put a damp towel over the entire bottom crack of the door 5) Light incense right next to the door 6) Open one window (just one) 7) Put a box fan up to it and have it situated so it creates an air current headed outside the window 8) Stuff dryer sheets into a used-up toilet paper roll, with one or two of them completely covering the side smoke will be coming out of (hold these on with a rubber binder) Your room should now have a current of incense running from near your door to outside your window. Turn off all the lights and cover any part(s) of the window that don't need to be exposed to allow for the passage of air. Take a hit, put your piece down, and then exhale through the tube with your face about one foot away from the moving fan; wait a minute if you can smell anything. I realize that it sounds like a pain in the ass, but you'll never get caught if you do all of that. Further, taping up the door - by far the most time consuming step - only has to be done about once per month if you get the tape on right the first time. The rest of it all should only take a few miniutes to get set up. Having a buddy a room or two over to keep an eye (or a nose) out for you doesn't hurt either. Good luck at college.
most dorm smoke detectors cannot be deactivated and depending on the school incenses and candles are not allowed and you'll bitched at for having them.
Lighting a scented candle or incense in a room that is sealed off to the outside hallway is a non-risk: worst case scenario would be that someone smells a hint of mango in the general vacinity of the room from which it is coming from. Temporarily incapacitating a smoke detector is not at all difficult, even if the power source cannot be reached without a special tool. Safely smoking pot in a dorm room can be done if the right precautionary measures are taken, but the best way to not get caught is to simply refrain from smoking it entirely. What's more, there's plenty of other things to do on a typical college campus that don't harbor an obnoxious stigma (drinking, for instance...).
Well, I smoke daily right now and I'm getting 5 A's and 1 B. It actually helps me. It balances my day out, I have to go to school for 6 hours a day and sometimes I can have like 3 hours of hw and sometimes have none. It really helps me if I wait to smoke at the end of my day, because then I have something motivating me to get through all the shit I need to get done. I'm cutting back now though and trying to smoke like every other day. Weed doesn't make you stupid, the only negative thing it's done to my school situation sometimes is when I get high and don't want to do my hw. So, my advice is continue smoking but just be responcible about it and smoke when you have free time.