Just look at a Doxie's teeth. Real scary. They have the most vicious teeth for a dog their size, but it comes from breeding a dog with a heart three times their size to go down a badger hole and do battle. Unlike most, my doxie was brow-beat when I got her and the cat could beat her up. She also was cross-eyed. We had three dogs at the time, a poodle, a lab and Pixie. Pixie was the vet's favorite.