Subway guide dogs generally do not bite people. Guide dogs are strictly screened and trained. The selected breeds are gentle and non-aggressive. Before becoming guide dogs, they will undergo training for about two years to ensure that they It has a high degree of obedience and stability. During the training process, guide dogs learn how to get along with people, how to avoid aggressive behavior, and how to respond correctly to the dog's instructions. Therefore, under normal circumstances, guide dogs will not bite people.

However, the behavior of any animal may be affected by the environment and emotions. Although guide dogs are trained, they may become aggressive in certain situations, such as when they are frightened or feel threatened. Therefore, when in contact with guide dogs, people should remain respectful and understanding, and do not tease or frighten them at will.