I live for this. I love watching the stupid "gotta half-run, half-walk" move that guys do. A bunch of ****ing morans trying to look fast. I don't hold the door for guys because I'm a gentleman. I do it because it gives me sadistic entertainment to watch the shuffle.
I do not shuffle or hurry. If they are holding it open for me that is a sign that they are willing to wait the 2 - 5 seconds it will take for me to get there.
I only hurry when I'm in a crosswalk at an intersection and there are cars waiting for me to cross. This leads a to another pet peeve: people who are slow as snails when crossing the street.