Emperor Gallienus punished a merchant who had swindled the empress, selling her glass jewels instead of authentic ones, by setting him in the Colosseum arena to face a ferocious lion. When the cage opened, however, a chicken walked out, to the delight of the crowd. Gallienus then told the herald to proclaim: “He practiced deceit and then had it practiced on him.” The emperor let the jeweler go home.