He has full lips, a prominent Adam&rsquos apple and a profile that&rsquos right out of 15th century Florence. He has his eyes gouged out, ominously corroborating tour guides&rsquo claim that it&rsquos the image of either a heckler or a man headed for execution. He also has a curly mop, possibly of a less fortunate pedigree than that of his neighbour David, but enough to suggest that this man, who has been addressed by Florentines as L&rsquoImportuno di Michelangelo (literally, 'Nuisance') for ages, is the covert job of Renaissance great Michelangelo himself.

