Corpse Launches

[Cruzore]

http://wiki.frictionalgames.com/hpl2/amn..._functions
You find everything you need in there, use a collide callback for the area and I think addbodyforce or impulse, just try it out.
Often you have to use trial and error, and a corpse shooting out from a cabinet has been used so often that it's no longer making you jump, and will ruin your map, no matter how good it is, just because of a simple, not scary corpse.