This is a very isolated use-case but I think it is of enough merit to post about.
There are various "climbing" locations where items remain stationary if dropped. I propose the addition of gravity specifically for items in this location. The idea is an item would just keep falling until it hits the ground like in any air location but the person remains stationary (unless unconscious).
My use-case is specific to hauling bodies out of hard to reach places but I think the code could be utilized elsewhere with amusing effect. I.E. Titanfall-esque Gravity Grenades that give a bonus to sniping that occurs in the room where used but also causes item/unconscious player shifting between rooms.