a few minor seeming mistakes led to the death of 1/3 of my fort.
I forgot to close a floor hatch and had a hunter go into the cavern level.
Of course he starts shooting the fauna -- a reacher, in fact. As I realize what's going on, I see that the reacher has become nausiated from pain.
So I say to myself "Squad practice"
So my squad goes along with their mighty wooden weapons and bludgeon the thing to death. So I think, "Oh boy, free lunch, wonder what Reacher tastes like [probably chicken] etc.,"
So I have somebody haul the dead reacher to the butcher shop.
And then I recieve the announcement "Urist, Wheredoyouwantthisagain stops hauling, freaked the $^#^ out because it moved."
So I send the army to kill the reacher again, and again, and eventually a citizen walks by as the reacher reanimates and urist mcshouldastayedawayfromcorpses is now urist mczombie(1)
Urists McOH#@!^ and McYoudon'tlooksogood bite it, as well as half my soldiers, creating mczombies(2-4) and one soldier goes missing.
1/3 of the remainder need diagnosis and walk away from the table before my doc can get to them.
Just then I get the feeling that the missing soldier was sucked down by a vampire, and just as I'm about to figure out what to do about that the last straw comes
New migrants -- I (emotianally) can't deal with them at the moment.