The only way I can see it working is if the dog is in an adult only home - and if out in public or around children, he be muzzled. That wasn't just a bite poor Axl suffered, it's a proper mauling and who knows if the poor little mite might suffer permanent scarring on his face. I think once a dog attacks as viciously as that, you'd always be terrified it would happen again.
My blood runs cold even thinking about being in the situation and trying to figure out what the best course of action would be. I feel so sorry for them