I will say our whole family raises the kids in our family. So if Isaiah is out of line my brother will say something to him or correct him with no issues from me. Bad kids drive me nuts!!! But bad parenting is even worse!!!! If your sister in law had any sense she would realize that a child treating an animal wrong is cause for concern IMO. I can never ever imagine Isaiah doing anything to mistreat Coco and Georgie or anyone else's animals. Heck he doesn't even want to kill a spider or mosquito!
BTW I am sorry poor Max was slapped
If it was Georgie he would have tried to bite the little boy LOL