Circa 1631. Picture an uneasy Florentine, gingerly pacing up to an aperture in the wall beside a grand palazzo gate, placing his straw flask at the sill of a little window. As he counted his coins before depositing them in the metal scoop - coins that were shortly to be disinfected with vinegar by the cantiniere - could he have known that humanity would be resorting to similar cautions roughly four centuries hence.

