Chihuahuas can be seen as cute yet fierce dogs, with a feisty personality that may lead to growling, barking, and even biting. However, it is important to note that Chihuahuas may display anger problems if not properly socialized and trained during their younger years. Their small size can make them feel intimidated and threatened by larger animals and people, leading to fear and angry behavior. Proper guidance and socialization can help minimize aggressive tendencies in this breed.