On the Job: What If You're Being Taken Advantage Of?

Actors, aside from the leads and stars on a production, typically have very little power in dealing with unscrupulous producers. This week we talk about what to do when you find yourself in a situation on a job that you don't think is fair or when you feel like you're being taken advantage of.  Let us know your thoughts on this? Have you had experiences like this? How did you solve it?