No, not denial, anger, bargaining and acceptance.
First, WOO-HOO! What to do with all the free time?
Second, buying lottery tickets in the dim hope that free time could be my long-term future.
Third, a tiny bit of bored and lonely, which led smoothly to...
Fourth, working like a fiend and, for the first time in years, it doesn't even feel like work.
I think the sabbatical worked.