Oh man you a bad dude for real!!
We had a pitbull growing up and he got hold of an hedgehog in the garden, shook and tore it to shreds, I can still recall it's squeals, anyway my Dad clubbed it with a shovel to put it out of its misery, then threw it over the fence. The next morning my Mam took the dog for a walk and it was still alive dragging its self along.
The end