Angel Fish is an old ship that has been modified, rebuilt, cut up, and reconfigured more times than anyone has kept the records for. As a result, some pretty lunatic decisions have been made that have left some parts of the ship with nothing but a few millimetres of external hull skin as the floor.
Given that there’s no record of where these weak points might be–as the one thing that every entity modifying the ship has done is applied new coats of paint, making it impossible to tell the ship’s skin from any other alloy floor–it’s all too easy to find yourself in a situation where a dropped tool could puncture the hull. And in a pressurised room, and with a fatigued and corroded alloy for a hull, this can get serious fast.