The door handle could actually be described as an anti-affordance. I looked at the photo and thought to myself what a great idea it was that it gave you a comf

The door handle could actually be described as an anti-affordance. I looked at the photo and thought to myself what a great idea it was that it gave you a comfortable ridge for your knuckles while pulling and a nice rounded bit (instead of a sharp-edged flat surface) to push on. That is, it signalled to me the exact opposite of the designer's intended use. I would have been doubly surprised if pulling on that clearly "pull-only" handle didn't open the door.