When I go into the bathroom to change clothes in the morning, our dog, Rascal, has me figured out. She knows I'm almost ready to leave for work, so she goes to the doorway of her room and waits for the DH to give her a treat before she goes to bed.
As a writer, being predictable can be a good thing or a bad thing. Lots of marketers say to stick with one genre or area of expertise. That way you'll attract a particular audience that will know what to expect and follow you for it. Over time, the audience will grow. You are reliable. That's a good thing.
Then again, it can be a bad thing for writers like me who get bored easily. I would feel stifled if I only wrote mysteries, no matter how much I enjoy doing them. That's because I also love writing romances. I also enjoy writing about my dog, Rascal. Not only that, I have a great time writing how-to articles on marketing, self-publishing, and a number of other topics. Then there's also my blog. I love sharing my writing and life experiences on the Internet.
What about you? Are you predictable, or do you enjoy a wide variety of writing?