You walk through the door and realize that you have just exited the spinning room from the same door you entered through. You feel your head again and wince in pain. That's going to hurt for a while. You look back and remember that there were three other doors in that room. But do you really want to go through all of that spinning again? Of course, you could always go back and take the corridor in the other direction. It's time to make up your mind.