Walking up to the over sized black doors you can see a number keypad, you wonder if you remember the code. You look up and there are five shotguns pointed right at your head. Heck no you think, you better not enter the code unless you are a hundred percent sure you know the answer. It's your call. You might remember seeing some numbers around but what is the order? You take a glance down the hallway before reaching for the keypad.
Or try a different room.