My fortress population has dropped from 160+ to 90, and is still dropping.
It all started after a goblin siege wandered off. I opened the gates again to let the dwarven caravan in (which still arrived while they were shut, god damnit.)
Suddenly dragonman ambushes! My militia wasn't decimated, they were massacred. The civilians took a hit too because I forgot to hit the !!PANIC!! alert. The dragonmen breath fire and roast their enemies, and sure enough the entire map was set ablaze, nearly the entire militia burning to death despite easily wiping out the weak, unprotected dragonmen. This almost instantly set off an armageddon-level tantrum spiral in the civilian population, as every last soldier had multiple family and friends. Of course, I decided that the fortress was fucked and ordered the militia to murder teh dwarven caravan just to see how far I could push it. Turns out, it couldn't go much farther anyhow. The militia that engaged the caravan gaurds were slaughtered, and those that attacked merchants were deemed traitors and attacked by there comrades. It didn't last long, though, as the remaining soldiers murdered one-another, and eventually there was only one traitor, to both the civ and the local governments, who slaughtered a dozen or more people and nearly any of the remaining soldiers that came after him. He was only adequate with his battleaxe with meager skills besides, but that was more than enough to defeat the other troops who were all marksmen or recruits. Eventually he ran off into the forest and one of the rangers got a few shots off at him, which happened to hit him in the spine, right below the base of the skull. He quickly suffocated, and taht was the end of his rampage. I've been pinning murders that occurred while he was alive on him. Strangely, the Captain of the Guard at the time waited until he was long-dead to bleed to death on the lawn, despite that traitor being the last thing he'd been in combat with over two weeks prior. He was a crippled veteran of the last goblin siege, anyway.
All the remaining military personnel are now members of the fortress guard along with a hefty helping of civies. They're still unarmed, unarmored, and hopeless, but at least they can't easily kill any criminals. I watched one officer beat the crap out of a soldier who had punched the ranger captain to death in her sleep. The officer enjoyed her torture of the bastard and then went back to hauling, without killing him. Then a child went berserk in front of a tame dragon in the dining hall. Guess what happened?
That's right! Everybody on the second story of the dining hall got a nice helping of dragonfire and burned to death! Glorious!
There is currently some lowly brewer chasing down another dwarf with intent to start a fistfight.
Wait... No, he went after a turkey hen and just grabbed her a few times, I'd imagine staring angrily at her... I'll call that proper anger management.
Then a cook began to stalk and brood! Lovely!