Like many other women, I could not understand why every man who changed a diaper has felt impelled, in recent years, to write a book about it.
Generally, Hollywood makes the same stories over and over. I've never wanted to do the same thing twice. If a script doesn't surprise me in some way, I simply can't commit to the project.
As a teacher you are more or less obliged to pay the same amount of attention to everything. That can wear you down.