He is a typical high energy puppy but has become aggressive to the other dogs in the home. His aggression has been unprovoked. He has recently started to show aggression towards a 5yr old child in the home but is fine with the older kids 10yrs and older. My mother got him back in September and did no research on the breed and now doesn’t know how to handle him. Due to his aggression we can no longer have him in the home.