In Norway you can mutually agree to leave early, but the employer can generally not force you to leave to the extent that there have been cases where people have insisted on coming to work against the employers will because the saw it as problematic for their professional reputation if they were forced to leave. Generally courts would tend to be sympathetic to employee concerns in cases like that unless there are very compelling reasons to keep them out (e.g. lets say they were dismissed after a violent attack on another employee or after being found stealing secrets fro the employers).