Afghan Hound
These dogs were bred as guard dogs and for hunting, so they need discipline and training. If untrained they become disobedient and quite destructive. They might see small kids’ playfulness as a form of aggression towards them and react badly.
English Toy Spaniel
These dogs like to be dominant and in charge. They’re small and cute but can be quite aggressive to other dogs, children, and even adults if they feel threatened. That’s why if a child mishandles them they may get bitten.