You use the save and workbenches a lot in Dead Space 1. BUT there is one and ONLY one work bench you use and when you try to exit it a freaking necromorph will SCREAM in the side of the screen at Issac.
This messed me up bad and was a good jump scare for the reasons Chris mentioned above. You use the workbenches all the time (the game didn't pause ala Alien Iso, Dark Souls) But you usually were either in a safe room anyway, or you killed everything in that room to use the bench. The sinister act of adding the one jumpscare almost halfway through the game was genius to me, cause I sure as hell was cautious about going to any bench in the rest of the game and really was proud they did it once and only once.