I actually asked someone who was in prison. He said that they only have so much free time.
Anyway I think it's more of a fairy tail we tell ourselves.
No, it's not. Several years ago my sister was employed in a position where she had to be in court every day. One morning, five inmates were brought in for arraignment for assaulting a child molester. They beat him and stabbed him repeatedly with a pencil. He had to be hospitalized because they beat him so badly.