See the one about the @Civility@hexbear.net goblin that could theoretically "prove the Goblin Slayer wrong" by being raised by non-goblins and therefore becoming very civil?

The Goblin Slayer justifies his extermination of the goblin children because they hold grudges and will simply use their survival to adapt to his methods, but TBH the most fitting way to turn this against the narrative would be to have a goblin raised by human who gets his revenge by proving the Goblin Slayer wrong, learning from the mistakes of all the other goblins.