In fact,such behavior may prevent his or her friend from taking right actions. The same to a school,a family,a company even the nation,when the subject that people once string along with no longer deserves loyalty,people should resolutely choose to be loyal to the truth,the justice and the humanity. That calls for people are always alert to what they think right and what they think wrong,via doing so,people can change their mind for right choice on time.
To sum up,people should insist on true loyalty,and always avoid being the victim of the misguided or overextended loyalty. In the world,there is nothing that can be always absolutely right or wrong and changing happens all the time. So people should always hold deep insight to discern what deserves their loyalty and what does not