Followed the old 2010 tutorial, Bentgirder.
All was going well, since things were moving astoundingly as predicted, even the racoons. Lost the place when goblins attacked along the recently finished road, shooting a smith/architect in the neck. She ran away, bleeding all the while all the way into the fort from the map edge, and into the freaking tombs of all things before expiring. As you can imagine, things quickly went downhill.
I had a tiny militia consisting of the miners, woodcutter, and two migrants. Since I only had weapons (I forget if they were swords or axes,) I sent them out and hoped for the best, whereupon those not shot to death by the bowgoblin were shredded with swords. The survivors barricaded the doors, and one flipped thier lid and started attacking people, basically hospitalizing everyone besides a miner I'd missed when drafting everyone, who killed the berserker but suffered a bite injury on either her arm or leg (again, I forget which.)
With everyone hospitalized and nobody to tend them, the place just kinda crumbled while I let disaster take its toll in the background while I watched some video or another, with everyone still alive (a whopping four people, since the attack happened at the start of spring the second year,) dying of dehydration.