Okay, so, my friend, Jane Doe, has a purebred male Shih Tzu, Bob. My other friend, Janet Doe, is probably going to get a dog herself. She wants to get a female dog so that Bob and the bitch to breed. No matter how many times I try to explain the precautions you must take before breeding, and that she just plain shouldn't DO IT, she doesn't care. I told her about money problems, possible disease, and that spaying or neutering is best. What do I do to show her that she should neuter her dog?