I am not here to facilitate your laziness

When I walk out the door and see you behind me also about to walk out the door, I'll hold it open for you. I'm polite like that. Convention has its place in my life. When I hold the door open, looking at you with a smile as I wait for you to get up to it, the thing to do is to pull your hand out of your pocket and put your hand on the door, thus holding it open for yourself. The thing NOT to do is to walk out the door without touching it and walk right by me. I am not your doorman, you lazy jerk.