I know this post is pretty old, but I had to respond :lol:
The only purebred Ive ever had is my russian blue cat - all my dogs have been mixes. when I was growing up we had a small terrier mix named Brandi, and a lab/rottie named Shane. My biggest mix is one of our dogs now - Bongo, he came from Guam and there they call them Boonie dogs (wild dogs who are descendants of both military working dogs and pets who were left on the island after WW2) we call him a shep mix, but the vet says he also is dobie, greyhound and dog knows what else!! :lol: Bailey is my beagle mix - the vet says she may be mixed with either dobie or whippet, but Im not so sure..... our training instructor thinks some sort of herding dog is more likely...... shes a little taller than a beagle, but fairly thin and primarily black with tana nd white accents :wink: I love my mixes!