Just found a cheesy little exploit that will let you kill the 3 frights guarding the black chest room in Verhoffin Ruins without taking a scratch.As soon as you enter the room, quickly open the door to one of the 4 cells and run in and shut the door behind you. While inside the cell you are invulnerable because frights cannot seem to open doors.
Usually a fright will charge you as soon as you enter the room. If one hasn't yet, open the cell door and go shoot at one, then run back in the cell and shut the door. The idea is to get a fright chasing you while you are safely in one of the cells.
Once you have a fright running around trying to get at you in the cell, wait till they get close to the door and go into turn-based combat. The fright will freeze and it will be your turn. Now open the door. The fright should be pushed back and you should have a lot of free shots. Take some shots and the fright should back up allowing you to close the door ( beware after 3 or so rounds the fright will get smart and charge you ). Once you close the door, exit turn based mode and repeat. If done correctly you should kill all 3 frights without taking any damage.
I managed to kill all 3 frights at level 1 this way. Unfortunately I did not realize you could not open the black chest with a level 1 disarm trap, so it wasn't very usefull 
