Beginning writers often ask me if people's feelings are hurt when they show up (disguised as a character) in my books. I tell them no. Why? Because while people are good at recognizing other people, they never recognize themselves.
Case in point.
When I wrote CAL CAMERON (a million years ago and on another planet), I modeled Cal after my youngest brother, which everyone who knew our family recognized. However, when Jimmy finally read the book, he was concerned that our brother John--JOHN-- might resent being fed whole into the word processor.
See what I mean?
So today's writing advice is this: feel free to exploit your loved ones for fun and for profit.