Sounds like an episode of the Brady Bunch with Peter having to play Benedict Arnold. (In the Brady universe, Arnold was worse than Judas, Hitler, and bin Laden combined). In the end, he sucked it up and played the role.
In 6th grade Sunday School, we put on our version of the Passion Play. I was cast as Pontious Pilate, and I sentenced Jesus to death.
We didn't actually crucify the kid who played Jesus. I put a crown of thorns (plastic flowers) on his head and led him away.
But here's where it gets screwed up. I'm the bad guy, I hand our savior his death sentence, and a few kids in the audience are cheering ME!!!
In some people's minds, being bad is more fun than being good.