I have a toothache. It's far too hot in this computer room to work. I also have a mouth ulcer. So I'm tired, mildly in pain, grumpy, and have lost huge amounts of time today to going shopping, eating, and generally doing stuff that isn't maths. Also there's a big committee meeting tonight I have to go to, at which I'm supposed to have come up with a coherant plan that I haven't started on yet, and I need a 5000 word essay on RB convection by Tuesday. Why I can't need an essay on "what I did with my weekend" or "what's your favourite hobbits colour meme" is anyone's business.