Actually, it was all because you didn’t get your dog spayed in a timely manner and then didn’t properly monitor her when she was in heat. After all, if you’d done the former, the pit bull wouldn’t have had any reason to try scaling an 8.5’ fence, and if you’d done the latter, you could have simply brought her in while he was coming over the fence. And, of course, you could have had her spayed after the breeding but before the pregnancy became advanced. It would have cost you $10-$30 extra, but it’s a hell of a lot better than a few thousand extra.
As for the saga at the vet, it’s a fools errand to try counting puppies on ultrasound, and palpation for pregnancy in the early stages is pretty dicey. I can’t fault your vet for that, really. Still, it seems incredible to me that you could miss 10 puppies completely on ultrasound.
Still, this does go to another point that I wanted to make about breeding toy breeds like a Papillion. Male dogs can and do go through unbelievable barriers to get to a bitch in heat…and the ones who do tend to be large dogs. If a large-breed male manages to get to her, she’s in a world of shit, medically speaking. Vaginal tearing, internal hemmorrhage, certain need for c-section, risk of uterine rupture if she goes into labor before you can take her in for a section.
And, of course, there are the sorts of injuries my grandfather’s beagle suffered when a Rottweiler jumped through a sliding glass door to get to her. He couldn’t dis-engage, so when he was ready to leave, he jumped back through the shattered glass and dragged the bitch with him. She suffered horrible cuts all over her body, and damn near bled to death before they could get them seperated and her to the vet. Are these sorts of cases unusual? Yes, but they do happen, and they’re something you have to be willling to risk if you’re going to keep an unspayed dog.
As for the vigor of the puppies, toy breeds are more susceptible to bouts of hypoglycemia, especially as puppies. Their glucose levels can just bottom out with no warning if they don’t eat every few hours. If you can’t watch them and make sure they eat or get syrup rubbed on their gums every four to six hours, you have to resign yourself to the idea that you might come home from work to find one or more of your pups comatose…or dead.