Chihuahuas are often portrayed as mean, but this reputation is misleading. Meanness in Chihuahuas is usually a result of poor care and unmet needs, such as lack of boundaries and training. Factors like territorial behavior, suspicion, moodiness, excitability, and fear can contribute to what may appear as meanness. Chihuahuas can be trained and managed to have more balanced behaviors. It is important for owners to understand and address their Chihuahua's needs and behaviors in order to prevent and manage any perceived meanness.