Behaviour towards other animals is normal, also normal considering the age. Donar at the moment does not start any confrontations with females. Towards adult males Donar reacts subdominantly. At the moment fear-biting may be almost certainly be excluded. The dog did not receive a Schutzhundtraining.
Every animal is tolerated to be aggressive.
It needs aggression to survive. If aggressive behavior turns into danger, regulatory measures are justified. The dog is considered to have increased aggression, if he, either by conditioning or genetic disposition, considers a human or animal to be an aggressor and reacts with open uncontrolled counter aggression. Durin agonistic behaviour between animals, the drive aim is inner balance and intactness. Thus, a dog that gets hit and reacts with open counter aggression, possibly hurting a human, is not to be considered highly aggressive or dangerous.