There’s a dreaded disease going around at the moment that evidently afflicts people who think they can lead us.  

And because it is getting serious, there really is a need for them, especially since they hold some public office or position of responsibility or authority, to first engage their brain, no matter how small, to take deep breaths, to bite their tongues or, indeed, to do all of the above, before they open their rather big mouths to speak.