There was another bug where dwarfs would sometimes go blind after a fight. The problem was that they got blood in their eyes and had no way to get it out. This led to the addition of eyelids so they could blink away blood.

Starting with 2 cats would mean the extinction of local wildlife because they would breed and hunt everything until there are only cats.

Dwarf Fortress is so complicated that the bugs tend to be hilarious.

Then there is boatmurdered… https://en.wikipedia.org/wiki/Boatmurdered