If you've lost focus, just sit down and be still. Take the idea and rock it to and fro. Keep some of it and throw some away, and it will renew itself. You need do no more.
I would say that the Pentagon Papers case of 1971 - in which the government tried to block the The New York Times and The Washington Post that they obtained from a secret study of how we got involved in the war in Vietnam - that is probably the most important case.
People didn't know until I said it publicly that I had a nasty side. It was never obvious to the fans. I never lost my head, you see. Never got sent off.