We don’t even know the half of abuses going on for decades. Mary said she was holding back the hand of her Son. Why we're still here I cannot even fathom it makes me tremble in fear for myself and my children. May God have mercy on us
While not advocating the practice, it would be less of a sacrilege to give communion to a dog, than for someone to receive It in mortal sin.
When you think of it, giving communion to an animal to be eaten, is another form of returning It to the created elements, such as happens when, for instance, regurgitated Sacred Species have to be put down a sacrarium.
And the dog, being a dumb animal without reason or an immortal soul, at least does not eat its own damnation.
The priest and the owner would, however, have something to answer for. Again, not advocating the practice. It is outrageous even to think about.