Bloat idea:
Once your fortress exceeds a certain population, if you get several dwarves unhappy with their work (or lack of):
Seven semi-random fortress dwarves (below Master in all skills, preferably unhappy) decide to leave together.
Their leader will meet with the Mayor / Count.
(Possibly with a trading / embark interface, or a intermultiple-choice dialogue: "take what you need" vs.
"we will let you take only what you can carry" (one barrel, one weapon each) vs.
"the only way you leave here is dead" (cancel emigration + unhappy thought).
They then take stuff (food, seeds, barrels, animals, up to a points maximum) and leave for the map edge.
They are not gone forever -- when you next embark on a new fortress, just load these seven dwarves and their stuff.
[Probably more effort than it's worth though - and if they take the wrong stuff, emigration could cripple a fortress I suppose.]
[ April 05, 2008: Message edited by: Samyotix ]