oh of course, most mixed breeds are accidents, some (designer breeds) are intentional but almost always the breeders lie about them. I say almost always because I guess there might be a good breeder of labradoodles or border mastiffs (border collie x englich mastiff, hope I made that up and no one will think its a good idea) out there somewhere who does health and temperament tests and carefully selects breeding stock and homes for puppies.
there are a lot of bad breeders of purebreds as well, sadly there are probably way more bad breeders than good breeders. no matter what type of dog you are looking for, it is up to YOU to do a lot of research. dont just research the breeds, which is deffinetly important, but find out how to pick a breeder.
if you want a mixed breed then go to your local shelter, they will almost certainly have too many. if you want to intentionally mix two breeds together then you should have a deffinite goal from the mixing, plan on breeding for multiple generations before acheiving your goal, be ready to not ever acheive your goal (labradoodles were intended for hypo allergenic assistance dog, failed and was given up by the responsible breeders), provide homes for any and all of the dogs you produce wether they meet your goal or not, and get a large group of others who also want to acheive the same goal. be ready to do a lot of health and temperament tests. and much much more.
it is theoretically possible that after several generations of crossing gsd's with labs, bloodhounds, chihuahuas, english mastiffs and pugs that you would get a breed that is superior to each of those in certain ways and is a superior all around dog to the gsd. but I personally dont like the idea and I deffinetly wont be testing it out.
so in my opinion there is nothing wrong with intentionally mixing two or more breeds if it is done ethically, responsibly, intelligently and with a goal in mind (not $$$).
accidental breedings are NOT an excuse. they can be easily avoided.
dixie said above that her boy cant be neutered right now. if thats your situation, or you plan to breed but the dog isnt old enough to have all the tests done, Im sure dixie is extra careful with her boy. Im sure you (dixie) normally do everything you can to prevent any dog from escaping your fence, house, or simply escaping your supervision/security in any way. but I bet since your boy isnt neutered and COULD maybe breed a female that you are extra carefull to prevent that.
my wife just adopted a kitten and she is only (the rescue and our vet guess) 10-12 weeks old. she cant be spayed yet because our vet refuses to spay/neuter before 6 months of age unless there is a known health risk like a kitten or puppy has a tumor on the ovaries or testes. it is possible for a cat or dog to become pregnant at or before 6 months of age. we have a neutered male cat too. we are very carefull to keep him inside even though he couldnt get a female pregnant. we are being very very careful to not let the female get outside. of course partly that is because either of them could run away/get lost, get stollen, get killed by a dog-coyote or hawk or owl, get hit by a car, get sick or any number of things. but we are extra careful with her (okay, not right now) because she could get pregnant.
there are enough unwanted pets out there. no one has any excuse or right to have an accidental breeding.
thats what i thought you meant rottnpagan but I wanted to specify incase anyone reading this thread thought you/I/we meant killing when we said culling.