I'm having an honest to goodness bad day at work that ordinary people have. Not the kind of bad day where workmates yell at you, or drag in 5 year old furniture to form a scale model of the Maginot line, but rather one of those "can quite hit the mark and can't seem to really care" days that everyone else has.
Something really discouraging and disappointing has been nagging me lately and last night it seemed to be weighing heavily on my mind, so coupled with a few more niggles I didn't seem to get any sleep last night. Around 3am I decided to take some herbal sleep remedy which, I am convinced I am immune to as it always means I stay awake and feel extra drowsy in the morning.
Anyroads, half asleep today I went into work and tried to go over my notes for the unholy trinity of lectures I have to give on Wednesdays. They went badly. Binary addition, something I've gone over ad naseum seemed to be very, very difficult today. Every time I tried to prove some sort of concept I got completely the other answer. It was like pantomine came early to Leicester this year with the students ably yelling, "Oh, no it isn't." All I was missing was the frock and bad makeup.
However some lateral thinking saved me - I tried to write out the circuit diagram for one of my lectures and failed miserably 3 times, so using my brain for the first time I ran off and photocopied the diagram onto OHP 10 or so times to work through some examples. I feel I really deserved a cookie for this lateral thinking as it saved my posterior from completed embarassment... unfortunately it also saved me so much time I got onto a bunch of material I wasn't expecting to, and left me wittering on for another 20 minutes or so.
Tonight I shall be boning up on my material and hoping the world ends. Ah joy.