Have you or anyone you know ever been on a reality show?

I’m being lazy and watching a lot of reality shows today, and just thinking about the editing processes and how some people are portrayed as fairly flat characters- the villain, the nice one, the “bad” girl, etc. I’ve never known anyone who’s been on a reality show, so I don’t know how accurately the people are portrayed.

Do you guys have any first or second hand experience of this?