You decide this is a bad idea, and turn around. You keeping walking the way you came. At least, you think this is the way you came. You remember the room symbol, don't you? There, just on that door. You turn the handle. It's locked.
You are struck with the realization that you have forgotten where your room is.
You can't return. You turn around to go back to your room and get out of this nasty, nasty light, but you can't remember the room symbol anymore. And this fork, a fork in the road! There weren't any forks when you first went down this way! It was a straight line!
What to do what to do what to do what to do