Most Helpful Guy
Why would someone date a dog?
Seriously, "mixed breed" sounds like such a derogatory term that I won't respond to the question.
Most Helpful Girl
Dogs? Horses? Cows? Bears? What?
Dogs and horses can produce awesome crosses. But you strive for purebred horses for registration reasons. One of my best dogs was a mutt. Husky and border collie. She was awesome.