IWU - you're leaving me disappointed!

I am of a firm belief that guys should opening doors, if not holding them.  With this expectation in mind, I am continually left disappointed on this campus.  Recall 2 posts ago, my embarrassing story about leaving my car running.  As I was walking through a downpour, carrying two cartons of water (=48 bottles!) two guys were walking towards the same door, and I heard the one tell the one "She has her id!"  Sure.. let me shift 48 bottles into 1 arm while I dig around for my keys, then shimmy through the door while you enter unarmed before me.