Individual ambition is undoubtedly a strong motive in student work, but there is such a thing among students everywhere as ambition for others, call it class spirit, esprit de corps, good fellowship, or good will to men.
I've never felt like I was in the cookie business. I've always been in a feel good feeling business. My job is to sell joy. My job is to sell happiness. My job is to sell an experience.
Any time a writer thinks he has all the answers to how someone should talk or react or end a scene, it's a spontaneity-killer.