Well, the office has closed. So we can go home.
Except, our boss has made it very clear that he would like us to stay, take advantage of the quiet, and get a lot of work done. He's ordering pizza in. If we stay, we bank a half-day for some other time, otherwise, we're effectively using the half-day now. So maybe we should stay?
As with anything in life, there's a quote from Casino for it: "When the old man says 'maybe', that's like a Papal Bull."