Very few of the Christians recanted, although an altar with a fire burning on it was generally kept in the arena for their convenience. All a prisoner had to do was scatter a pinch of incense on the flame and he was given a Certificate of Sacrifice and turned free.
It was also carefully explained to him that he was not worshiping the emperor; merely acknowledging the divine character of the emperor as head of the Roman state. Still, almost no Christians availed themselves of the chance to escape.