The thing with the cat horde . . . don't they adopt dwarves too quickly for that to work?
And yeah, you've convinced me to (temporarily) remove radioactivity from cats. It's just not as funny as that whole list combined
Solution:
Build an array ( Column or Row ) of cages and fill them each with a lot of cats, and make sure that place is isolate ( via outwards opening bridge ) , THEN when it is D-Day, pull the lever and release the beasts.
Also make sure to have a trap array and a marksman tower near it so you can get those f-tards while they're being mauled by cats, and when your done haul, haul, haul, and kill the non-believers via an execution lever and fill in what it does.
Fact: when animal hauling they're immune to the cat yiffiness
Fact: When building an animal farm, make sure to make two consecutive layers of tightly closed double doors, followed by a 3x2 retracting bridge over a pit, which leads back into the stupid farm, let them yiff and seasonally clean out the spawn, and extras, into cages.
Fact: When you start out with animals, CAGE THEM AS FAST AS FUCKINGLY POSSIBLE, THEIR YIFF IS TOO POWERFUL!!!
Fact: Cats have saved me too many times to make into radioactive cats