From the fourth lecture on world history on conservapedia: -

"The aphorism "idle time is the work of the devil" applied to the people of Rome. For entertainment, people would go to the Colosseum and watch people (at one time, Christians) be fed to lions, or see two gladiators fight each other until one died. The morality of the Roman people was in complete decline. It was like everyone now spending hours each day watching murder on television, except it was real then."