I've used original ideas for RPs before. I'm always a little nervous when I do it, so I don't do it as much as I used to.

But, you know, what if someone takes my idea and writes a book with it? Especially if maybe that's what I might do? 

Sorry if someone before me brought this point up. I know it seems a distant possibility to some, but in an age of e-publishing and the ability to get recognized in more ways like any other art form with the internet it is a possibility.

One of the big reasons I'm so comfortable with 'fandoms'. =)