[targonrotts]

all you can do is try to educate both.
the stud owner-if the bitch and dog breeding produces mediocre pups, people will judge her stud on that. if the bitch gets hurt or lost in his/her care, they can be liable. if they decide to breed with no OFA done,the studs reputation can be at stake. if the dog has iffy temperament, breeding can make it worse and bring about other problems.
the bitch owner-don't breed unless at least OFA and certs done. responsible for pups produced and genetical problems they might have.finding good homes.encounter breeding problems/whelping problems.can lose bitch giving birth.responsibilities of raising/socializing pups.

that's as much as you can do....you can't really force someone to do/or not do anything.

hope they get some common sense.