usually when someone enters the house i make him sit while they enter the house and go down the hall way into the living room. he sits when asked. this was a close friend and i wanted him to meet the dog. i mean the dog is well behaved enough and not reactive that i walk him without a leash around the neighborhood. he ignores all strangers.
he wasnt protecting me. he didnt seem fearful or nervous. he was alert and a little bit hyper. but VERY confusing as to why he bit for what i can see was for no reason and to my eyes, without any warning. can a dog bite just because he's being a big bully or is there always a reason behind a bite or attempted bite?