cause when you smoke a bowl the only smoke that you can't control is the stuff that comes directly off the bowl, and usually that won't get you stinky, as well as the smoke that you exhale, which you can direct, and etiquette (at least for me) is to blow it straight up or straight down, and straight up won't get you smelly. however, you will always smell SOME... I usually exhale through my nose though... something about it makes me smile ^_^