I don't really get scared, although at the storage room and prison I didn't really want to continue foward or anything because I knew that the monsters where patrolin (or at least i thought they where).
I honestly don't see how anyone saw the water monster as scary.
Also in the sewer I was paranoid the monster could hear me better because I was knee deep in water, turns out he couldn't, and after that I figured out that the AI for the monsters sucked so the torture rooms and places weren't really scary for me.