This maxim is based on the following anecdote: Once upon a time a certain blind man started from his native village, intending to go to a neighbouring big city. He had not plodded on far, when he met a barber, fond of practical jokes. The latter accosted the former and learnt from him, that he, the blind man, was travelling to town, where, he thought, plenty of alms was to be had for the mere asking. The barber, finding a sure victim of his jokes, told the blind man that he would find him a guide. He thereupon took him to a field, where a bullock was grazing, and let him catch his tail. He then said to him: “My friend, here is a sure guide for you. Don’t leave him whatever happens, and in spite of all that wicked people might say to do you a mischief.” The blind man soon reached not the town, but the heart of a n thorny bush! This maxim is applied to cases where a man places his trust on an object not worthy of trust.