The rules are very strict.
The water is DEEP AND DARK AND DANGEROUS
There are a lot of reasons to doubt things.
I don't feel like writing any more ghost stories.
Editors always want to know what you're working on, what you're thinking about.
You look back on some little decision you made and realize all the things that happened because of it, and you think to yourself "if only I'd known," but, of course, you couldn't have known.