I'm confused.
The bible does make reference to the coliseums where Christians were fed to wild animals. Even if it didn't, both the human torch thing and the wild animals are documented history.
thing is, the Christians appear to have asked for it. When brought to trial they would frequently and aggressively assert that they didn't recognize the authority of the court - poking the bear quite hard. This little tidbit usually gets ignored by Christians today when talking about this.