I would never have that child back in my home ever again, I would definitely contact their parents because there’s obviously some serious issues wrong with this kid. I would tell your children to never have anything to do with that person ever again. Mental case. This is the kind of person who probably hurts animals, who will be a serial killer one day. Unless his parents stand up to him. His parents are probably very weak, but you need to be strong. Don’t worry about what anybody else thinks. Do the right thing stand up to this kid and stand up to his parents and make a statement. This could be the moment that could change his life forever