Cockroaches are just too much like humans.
They want to live too much.
We were at a barbeque all fucked up and decided to conduct a genocide of the fuckers. Because after all, genocide is fun. Spray insect poison down the drains and smack them with a shoe as they go running.
My God, they adapt their tactics so quickly, it's like they have telepathy and they're broadcasting radio to each other. At first it was easy hunting, but then it just got impossible.
I hit one and wounded it and it played dead, thinking I would go after the others. Fucker. So I hit it again and it rolled like a fucking US marine or something and rushed for cover behind a loose tile. I hunted it down and smacked it with the shoe again and it vanished. I found it in the shoe - somehow it had jumped in there. I threw it on the ground and hit it again and this time, my God, it swarmed up onto my hand and jumped right for my face.
I finally killed the little fucker.
Human, all too human.
The main difference is they're harder to kill. You can hit one and it smashes into pieces, and when you come back half an hour later it has glued itself together with its own ichor and crawled off bleeding. You can cut a cockroach's head off and it will die of starvation, about a week later, after spawning hundreds of others.