I just got into this post, and man... This guy is my hero - I would said it directly, but I used some mod points on the discussion.
I used to work 80 to 90 hours a week - and speaking frankly, it's the kind of thing that you should do only if you have no other choice. I have kids to raise, and I live on a rich-wannabe country where people thinks that scamming employees and customers is a good entrepreneurial tactic, so I do not have the option to always say no to these things.
But sometimes I can such a thing, and in these times I do.
Working is for living, not vice-versa.