The cat dying is annoying, but I had a worse instance where I was fighting the 2 thugs trying to get money from the elv at the entrance of Fort Joy (Where you find Ifan and Lohse).
And that fucking Ifan retard just shot a piercing arrow across the thugs also hitting Lohse, making her enter the combat and then I had to fight her, ...
I wish the AI would avoid hitting non involved NPCs when fighting in crowded areas.