Seems to have been a common trick....
All hail Serapis and the Divine Vespasian!
Quote:A poor man who was blind, and another who was lame, came both together before him, when he was seated on the tribunal, imploring him to heal them [747], and saying that they were admonished (450) in a dream by the god Serapis to seek his aid, who assured them that he would restore sight to the one by anointing his eyes with his spittle, and give strength to the leg of the other, if he vouchsafed but to touch it with his heel. At first he could scarcely believe that the thing would any how succeed, and therefore hesitated to venture on making the experiment. At length, however, by the advice of his friends, he made the attempt publicly, in the presence of the assembled multitudes, and it was crowned with success in both cases
--Gaius Suetonius Tranquillus - Life of Vespasian
All hail Serapis and the Divine Vespasian!