Your internal editor: that little something that intervenes between what goes on upstairs and what you say: is taking the day off. While it's putting its feet up somewhere and enjoying a drink with an umbrella in it, those around you are subject to your genius-containing monologues, your sudden brilliant plays-on-words, your outbursts about how the world should be and more. Just have an apology ready in case you inadvertently put your foot in that wide-open mouth.