Gobbo and human thieves are being shredded and crushed by green glass disc traps before they even get a chance to set off the alarms. Seriously, every so often I just mass reclaim-dump-melt over my cage traps, and watch my hauler dwarves and furnace operator dwarf go.
Oh, and I lost my other hunter to a bunch of crundles. Captainette Falcon still lives, though, and now has a silver-plated dwarf glove to own cave critters with.
Edit: I got bored, trained up a legendary gem cutter/setter, ordered a metric frickton of gems from the dwarf caravans, aaaannnndddd....
Thing's worth 141,150 dwarfbux. Note the size of the scrollbar.
It includes, but is not limited to:
Pictures of my sole military dwarf cowering in fear due to cave spiders
Images of diamonds, squares, and other random geometry
Images of deities of all sorts
Images of a few of my fort's 7-or-so artifacts
Images of dwarves doing masterwork crap, i.e. engravings, meals...
Images of human getting its ass kicked by a trap
Images of my bookkeeper embracing a pair of ettins
Images of three forest titans
Images of random nature crap (thankfully, not very much - can't do with having this thing be too elfy)
Enough gem rings to last Las Vegas for a week, maybe two
The best part is... the next dwarf caravan agreed to pay 169% for musical instruments.
So I get to do it all AGAIN! Except this time, I think I'll use a steel mechanism or something.