The problem is the economy is so :cens0r::cens0r::cens0r::cens0r:e, that employers are getting away with BS and all you ever hear is "be thankful you have a job." Can't say to your employer "be thankful you have employees!" because unfortuody nately for you, they could just hire the next poor sap walking by, because everybody needs a job.

Still, it's no reason to bend over backwards. I'm not sure what exactly the laws are in your area, but where I live, nobody can MAKE you work overtime.