It's one thing, holding open the door for someone at a grocery store, or the library, or just about anyplace else. But the doughnut shop is a different thing altogether. This is a get-in-and-out-as-fast-as-you-can operation. There's no room for courtesy or chivalry here.
“The poor wish to be rich, the rich wish to be happy, the single wish to be married, and the married wish to be dead.”