The agency that I worked at has a policy of working on Summer Fridays until 1pm. I wish they didn't. Because it's a joke. Our clients are a disorganized, chaotic, inept bunch. So it's impossible to go home early. In fact, this policy ruins my Fridays because I am constantly thinking that "maybe this Friday" I will be able to go home and spend an afternoon at the beach. And just when it seems it will happen, some jerk forgot about an ad and it's a rush job, and there goes my Friday afternoon.
So I beg the people at the agency to stop this nonsense. Creating false expectations is cruel. It's awful.