i have to agree to a post on the doberman breed being very nervous and touchy,probably because the breeders spoilt them in the 70s &80s. my dad owned one and it was a nervous wreck ,personally i wouldnt cross one with a greyhound.on the other hand someone mentioned alsation x greyhound, a few lads i knew ran them and they done the buissiness on the big stuff and they kept there gaurding instincts to ward there owners muuch to the despair of a few keepers who tried it on with them -silly buggers