Lol, first off, Pennywise is the scariest fuckin' clown, hands down! Anybody who's anybody knows who he is, and knows not to let children be around him, ever!

And if you're smoking in a dorm room, be careful. I suggest only smoking hitters in your room, and even those might cause enough of a stink to reek up the hallway. I would get a fan and position it right by your window, so when you exhale, SLOWLY, it goes out the window. You're still not going to be 100% safe doing it in your room though, unless you have an air purifier.

If I were you, for the sake of paranoia, just step outside and take a short walk while you smoke, or either get in your car or someone else's and hit the road for a quick route.

Best of luck bro ~