Gotcha, and I agree with you on that. Like I said in my comment, this is exactly what I say in interviews, and I haven't had a problem with it yet. If I do then I'll find a new job. After a little practice you can get a feel for reading people and companies and you can usually tell if you are on the same page. I also always ask how many hours on average people work per week, or something along those lines.

Also, I absolutely would not tell a company that I want to work for that "under no circumstances" will I work any overtime. Nor will I hire someone that says such a thing.