Just this morning something....horrifying happened in Dwarf Fortress.
One of my Dwarfs went into the room I keep the male cats in (to prevent the dreaded catsplosion due to rapid breeding). Somehow, there happened to be a rat in a room full of cats (it may have just immediately spawned, since vermin spawn randomly), and the Dwarf in question was horrified of rats, and this was sufficient to bring his happiness from "content" to "Dwarf rage violent" level. The reaction? He starts throwing cats. The cats respond by attacking him.
Now, cats do not really have the attack power to quickly kill a Dwarf. An unarmed Dwarf can kill a cat, but will take a bit if they have no combat training at all. This room contained maybe 20 something cats. The Urist McCatbait refused to leave the room, and with each attack by the cats he became less happy, and he continued to fight the cats due to the combat AI and due to tantruming. Now, since it was a stalemait, neither being able to do a lot of damage to the other, it began to take a long time...so the Dwarf got hungry. So he was eating the corpse of the cats he killed while fighting off other cats, and it took him 2 ingame months to finally succumb (he was completely insane by the end of it).
Just the thought of it is....gruesome.