Our results came back from Preston's DNA test and he's a German Shepherd Dog, Labrador Retriever, and...get this, a little bit Australian Shepherd to boot. I personally think that Ursus contaminated the sample. Paul now likes Preston better for it. I tried to think which one of those would run off all of the time. My friend says he never knew a German Shepherd that didn't get out of it's yard one way or another. Labradors will often just follow their nose.I guess it's just Preston.