Rules for Being Human
Most ghosts were once human. The rules of humanity can still be applied.
2: School
You will learn lessons. You are enrolled in a full time informal school called life. Each day in this school you will have the opportunity to learn lessons. You may like the lessons or think them irrelevant and stupid.
Sidney Poindexter had not minded school when he was alive. Aside from the bullying, he'd actually come to appreciate – even like – school.
He didn't like being trapped in a black-and-white ghostly version of Casper High for the rest of his afterlife – for all eternity.
As he stumbled through the repetitive life day after day, he wondered what lesson he was supposed to be learning. Even after "defeating" the halfa, things had returned to their ghastly normalcy. He hated it. He didn't understand. Was the lesson to let go of his obsession, perhaps?
He'd done that, though. Hadn't he?
…Perhaps not. Maybe that was what he was supposed to do.
The Ghost King's army destroying the school was a good enough incentive to start trying, at least.
The Ghost Writer always wove morals into his stories. Lessons to be learned. Never did he have any evil intent.
(Alright, so the Christmas poem was a bit overboard. So sue him. He was dishing out lessons and revenge at the same time – he was allowed to be extreme sometimes.)
When he focused his stories on actual people, when he went about manipulating reality for his novels and poems, he always had a lesson in mind. He was still learning, too, but he felt he should instill some of what he had already learned into the minds of the ignorant, disrespectful, sometimes downright maleficent humans.
After all, that's how it was supposed to be – learn new lessons every day in this never-ending school called life.