Once I accumulated so much rollover vacation time I decided "I'm not working Fridays anymore" which lasted for many months. I found out later someone had complained to my manager about this, since I was unreachable. That same company had experimented with a 7:30 - 11:30 schedule on Fridays (7:30 - 5:30 Mon-Thurs) which was great: you'd miss heavy traffic coming in and get a head start on every weekend. But someone in the field complained about corporate being unreachable and they ended that too.... The problem is the "flexible thinking" people always come up against the "Bill Lumberghs" of the world and everyone is pulled down to the lowest common denominator.