Sometimes I just listen to classical pieces of music to take me away from my work. That's what I kind of do to wash away the notes that I've been working on all day. As human beings we need to sleep so that's kind of one of my little tricks.
And if, to be sure, sometimes you need to conceal a fact with words, do it in such a way that it does not become known, or, if it does become known, that you have a ready and quick defense.