There are several bad habits people exhibit while riding the subway, either because they are rude or because they are unaware of their surroundings. But I have one particular pet peeve.
Should you ever find yourself on mass transit, please do not hug the poles, lean against the poles, or otherwise monopolize the poles, making it impossible for others to hold onto them without touching you in inappropriate places. Don't do this ever. But especially don't do this during rush hour.
Consider yourselves warned. Practice proper manners on the subway or face my wrath.