There are only a few things I've never even remotely done in this game, and one of them is making a pit that wasn't a pond.
Can I get this straight? If you make a pit that is like 10 z-levels deep, you can drop dangerous non-flying creatures into it, such as goblins and assorted wildlife, they will not escape when you send them there, and in this case they'll probably die?
If I pit a goblin that has a crossbow, he'll probably shoot the guy who pitted him the fall doesn't kill the goblin?
So if I want to make a "shoot the goblins in the pit" attraction, I can make a shallow pit and pit melee goblins, who will mill around in the pit until I shoot them all to death?
Sorry to ask a lot of dumb questions (there are no stupid questions, only stupid questioners), but if this is all a pretty core area of DF, since it relates to mining goblinite and trying to figure out how to get rid of a stupid deer in a cage, both of which are common tasks.
A fortress is to some extent an experience factory, and experience killing things is kind of risky to get, since things tend to try to kill back, or tend to escape into a horde of ambushers. So I'd like to be able to capture things safely then shoot them in the face for free experience. I've made firing squad rooms in the past, but it's a pain in the butt to link cage to levers, and this sounds like an easier way -- just make a room like this:
Z+1
WWWWWWW
W++.++W <- Pit designated here.
W+++++W + = floor
W+++++W . = empty space
W+++++W W = wall or some such (doors as appropriate)
W+++++W
WWWWWWW
Z
WWWWWWW
W+++++W <- Goblin drops onto this floor
W+++++W
W.....W <- Goblin can't fly across here.
W.....W
W+++++W <- Dwarves with crossbows stand here.
WWWWWWW
Z-1
WWWWWWW
WWWWWWW
WWWWWWW
W+++++W
W+++++W
WWWWWWW
WWWWWWW
This seems like a simpler execution chamber than one that involves levers and cages.