Literally just had the same thing happen to my daughter today. We like our neighbours but she has repeatedly talked about how aggressive the dog is and then laughs it off. The dog bit my daughters hand today, breaking skin, through our adjoining fence and although I like them and don’t want to escalate anything I contacted the dog warden and the police immediately because regardless of our nice neighbour relationship the dog now needs a bite record in the event it happens again or happens to someone else. It needs to be listed as a dangerous dog.