Those days when I think "Why are they so annoying? Why can't they stop asking me questions and bellowing and whatnot? What am I thinking, homeschooling two children? I can't possibly do this even another hour."
Those days, I should immediately take some echinacea, vitamin C, theraflu and go to bed early. Because the gathering stormclouds indicate that someone (Lucy, definitely, and me, possibly) is about to become very, very ill.