What went wrong ... hmmm, ah yes.
A forgotten beast appeared next to some rodent men and women. The beast was a one eyed scorpion with a waxy cephalothorax. Well, it attacked the rodent ones and killed 4 out of 6. Everything on the FB was red in the wounds screen except it's eye and brain, both yellow after like 90 pages of fight against those rodents, which were using wooden spears. Due to it's injuries it missed EVERY attack it launched against the final 2 rodent women. And their wooden weapons did literally nothing serious to it either.
One of the rodent women finally collapsed due to overexhaustion (damn, I love that feature, already loved it with that Goblin Master Lasher that dodged 90% of my weapon traps but finally collapsed in the very last ... and got chopped) and was ignored. The fight went on between the final women and she suddenly punched the FB in the cephalothorax, bruising the brain. Which somehow finally killed the FB. Then some crundles appeared and my hunters started to hunt them. Right next to the fight that had been there a moment ago.
3 or 4 dead crundles later one of the rodent women attacks one of my hunters, get's beaten down by it's assigned war dogs and the 2nd rodent women suddenly turns 'FRIENDLY'. WTF? But maybe it's good that way, she's a 'Rodent women Spearmaster' now.
Anyways, 500 more forgotten beast meat now. This will result in some truly legendary meals made by my cook.
The wrong point is: I prepared EVERYTHING for just such a case when one of those FBs appear. My whole defense was on the jump, but well, those rodent people spoiled it.
Now I need to wait for the next one.
And yes, hunters are on the list: 'can be killed, noone will care', that's why they can go whereever they want. A decision that was made after a hunter lost one of his dogs and started to throw a tantrum twice but a truly godlike living room finally brought her back to reality. She even started a fistfight already but only with another dog. Almost had a spiral ... so it's better to lose them all instead of just a pet.