The Boy who cried wolf is one of Aesop's fables. It illustrates the problem of losing credibility due to developing a reputation of make false claims in order to get attention. Yet, the tragedy occurs when a true statement is made; it is ignored because of the lack of credibility of the speaker.
Does it apply in science? I think so. After you have been in science for a while I think there are certain people you just ignore because of previous experience of seeing their claims not bearing the test of time.