I never noticed this before and played through several times

[cantremember]

If you go to the guest room (in the back hall) for a second time, after you've already gotten the key and whatnot, you will hear a man say "who's there?". If you go in a third time I heard a man whisper "Someone's coming!"

That seriously messed me up. It's just a sound but I wasn't expecting it, I had never heard it before and my initial instinct was to think someone was there and have a mini heart-attack.