"The art of secrecy lies in being so open about most things that the few things that matter are not even suspected to exist."

Haha. Some people think they are so clever. (Some people, like yours truly here). Because these people actually believe that by talking so much about irrelevant stuff they succeed in distracting others from "secrets" and when others don't probe further they jump in further joy for they thought they had successfully hood-winked them, when all they did was to acknowledge but respect your privacy.