Exactly this.

Dachshunds are not a good beginner breed because they have the perfect combination of intelligence and stubbornness that makes them require a lot of attention and training to get under control. But once you know what you're doing they're excellent companions, extremely loyal and very friendly. My parents miniature dachshund is an absolute sweetheart, loves the family to death.

They were bred to crawl into a wounded badger's nest, drag it out, and murder it.

If you're going to fight a badger, you better be cocky. Nobody who has room in their skull for fear crawls into a badger's den after the thing, even humans dig them up with something pointy.