Chihuahuas are often considered mean, but this reputation is not entirely accurate. While Chihuahuas can exhibit mean behavior, it is usually a result of poor care and unmet needs. Chihuahuas are loyal dogs, but their loyalty is often limited to one person. They can also be suspicious and moody, and their moods can be influenced by their environment. Chihuahuas are highly excitable and require mental stimulation to prevent boredom. Different types of Chihuahuas, such as apple heads and deer heads, may have different behavior traits. It is important for owners to understand and address the underlying causes of their Chihuahua's mean behavior. Chihuahuas should not be judged solely based on stereotypes or reputation.