" In 2013, for example, Yahoo’s new CEO Marissa Mayer banned employees from working at home. She made this decision after checking the server logs for the virtual private network that Yahoo employees use to remotely log in to company servers. Mayer was upset because the employees working from home didn’t sign in enough throughout the day. She was, in some sense, punishing her employees for not spending more time checking e-mail (one of the primary reasons to log in to the servers). “If you’re not visibly busy,” she signaled, “I’ll assume you’re not productive. "

― Cal Newport , Deep Work: Rules for Focused Success in a Distracted World