They don't have to be Silent Hill type monsters where they haunt you in your sleep. They can be monsters that you would rather slit your wrists than fight.
I always hated fighting Master Tonberries in the Northern Crater from FFVII. I'd have Cloud 4 X-cutting outta those devilish fiends(each slash doing 9999) but that demon'd inch closer and closer with his butcher knife, knowing that my efforts were futile. I always peed my pants whenever the screen would do the battle transition in that one room with the tonberries. *Shivers*