Logical? or Genius: Stereotype by Kazutoyo Yamamoto

“Stereotype” is a door designed by Kazutoyo Yamamoto of Dessence Co, Ltd. The door has just a doorknob with no lock. However, the door still has secure features, even though it doesn’t have a traditional lock. The idea is that stereotypes have driven design to associate “security” with a lock. The door has been designed so that the only way to forcibly enter is to destroy the door.

Get It? I'll explain. It took me a minute too. You lift the Knob function up and to a certain position the right to open, to keep locked, you leave knob function to left. Logic says that for something to be "secure" it needs a lock, but Genius says you just need to think about what the other person WONT.