I certainly sympathize with employees who are normally horuly and called up extensively outside of hours, however they certainly have an obligation on their par

I certainly sympathize with employees who are normally horuly and called up extensively outside of hours, however they certainly have an obligation on their part not to check their e-mail or do other work related activities when they are not on the clock and most companies require hourly employees to receive approval before working overtime hours. For salaried employees, this seems a nonissue in most cases. Unless they are specifically told otherwise, they can normally expect to work more than 40 hours, and they are also normally in either management or creative roles both of which can face deadlines requiring far more than 40 hours to finish the necessary work.