A production I worked on once got very behind, it had already started to get out of hand at the beginning. My coordinator asked our entire team to come in that saturday to help the team catch up. I know a bit about labour law, so I asked if we would be compensated for that extra day of work, to which my coordinator said no. I told them I wouldn’t be able to come in as I had plans I couldn’t change. I DID have plans that Saturday, but I also knew that if I wasn’t going to be compensated for my work, I had the right to refuse to work for free. I don’t think anyone else on my team knew that though.